Finding the Fourth Proportional to 128,730,105.10, 192,945,858.45 and 52,002,757.90

Step by Step Solution

1. Step 1: Write the proportion equation
   128,730,105.10 : 192,945,858.45 = 52,002,757.90 : x
2. Step 2: Convert to fraction form
   128,730,105.10/192,945,858.45 = 52,002,757.90/x
3. Step 3: Cross multiply
   128,730,105.10x = 192,945,858.45 × 52,002,757.90
4. Step 4: Simplify right side
   128,730,105.10x = 10,033,716,764,783,018
5. Step 5: Solve for x
   x = 10,033,716,764,783,018/128,730,105.10
6. Step 6: Final answer
   x = 77,943,824.85