Finding the Fourth Proportional to 128,485,659,541.24, 177,314,462,436.71 and 70,616,090,573.92

Step by Step Solution

1. Step 1: Write the proportion equation
   128,485,659,541.24 : 177,314,462,436.71 = 70,616,090,573.92 : x
2. Step 2: Convert to fraction form
   128,485,659,541.24/177,314,462,436.71 = 70,616,090,573.92/x
3. Step 3: Cross multiply
   128,485,659,541.24x = 177,314,462,436.71 × 70,616,090,573.92
4. Step 4: Simplify right side
   128,485,659,541.24x = 12,521,254,139,496,648,146,944
5. Step 5: Solve for x
   x = 12,521,254,139,496,648,146,944/128,485,659,541.24
6. Step 6: Final answer
   x = 97,452,542,051.81