Finding the Fourth Proportional to 128,795,944.34, 177,739,340.10 and 70,059,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   128,795,944.34 : 177,739,340.10 = 70,059,116.72 : x
2. Step 2: Convert to fraction form
   128,795,944.34/177,739,340.10 = 70,059,116.72/x
3. Step 3: Cross multiply
   128,795,944.34x = 177,739,340.10 × 70,059,116.72
4. Step 4: Simplify right side
   128,795,944.34x = 12,452,261,173,801,676
5. Step 5: Solve for x
   x = 12,452,261,173,801,676/128,795,944.34
6. Step 6: Final answer
   x = 96,682,090.71