Finding the Fourth Proportional to 83,664,443.10, 125,496,664.65 and 83,664,443.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83,664,443.10 : 125,496,664.65 = 83,664,443.10 : x
2. Step 2: Convert to fraction form
   83,664,443.10/125,496,664.65 = 83,664,443.10/x
3. Step 3: Cross multiply
   83,664,443.10x = 125,496,664.65 × 83,664,443.10
4. Step 4: Simplify right side
   83,664,443.10x = 10,499,608,558,849,706
5. Step 5: Solve for x
   x = 10,499,608,558,849,706/83,664,443.10
6. Step 6: Final answer
   x = 125,496,664.65