Finding the Fourth Proportional to 128,013,443.60, 176,659,090.54 and 69,276,111.48

Step by Step Solution

1. Step 1: Write the proportion equation
   128,013,443.60 : 176,659,090.54 = 69,276,111.48 : x
2. Step 2: Convert to fraction form
   128,013,443.60/176,659,090.54 = 69,276,111.48/x
3. Step 3: Cross multiply
   128,013,443.60x = 176,659,090.54 × 69,276,111.48
4. Step 4: Simplify right side
   128,013,443.60x = 12,238,254,850,204,454
5. Step 5: Solve for x
   x = 12,238,254,850,204,454/128,013,443.60
6. Step 6: Final answer
   x = 95,601,325.19