Finding the Fourth Proportional to 129,157,674.72, 178,238,982.24 and 70,419,860.52

Step by Step Solution

1. Step 1: Write the proportion equation
   129,157,674.72 : 178,238,982.24 = 70,419,860.52 : x
2. Step 2: Convert to fraction form
   129,157,674.72/178,238,982.24 = 70,419,860.52/x
3. Step 3: Cross multiply
   129,157,674.72x = 178,238,982.24 × 70,419,860.52
4. Step 4: Simplify right side
   129,157,674.72x = 12,551,564,268,567,558
5. Step 5: Solve for x
   x = 12,551,564,268,567,558/129,157,674.72
6. Step 6: Final answer
   x = 97,180,165.99