Finding the Fourth Proportional to 83,671,520.10, 125,507,280.15 and 83,671,520.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83,671,520.10 : 125,507,280.15 = 83,671,520.10 : x
2. Step 2: Convert to fraction form
   83,671,520.10/125,507,280.15 = 83,671,520.10/x
3. Step 3: Cross multiply
   83,671,520.10x = 125,507,280.15 × 83,671,520.10
4. Step 4: Simplify right side
   83,671,520.10x = 10,501,384,913,767,056
5. Step 5: Solve for x
   x = 10,501,384,913,767,056/83,671,520.10
6. Step 6: Final answer
   x = 125,507,280.15