Finding the Fourth Proportional to 138,762.10, 208,081.59 and 63,864.10

Step by Step Solution

1. Step 1: Write the proportion equation
   138,762.10 : 208,081.59 = 63,864.10 : x
2. Step 2: Convert to fraction form
   138,762.10/208,081.59 = 63,864.10/x
3. Step 3: Cross multiply
   138,762.10x = 208,081.59 × 63,864.10
4. Step 4: Simplify right side
   138,762.10x = 13,288,943,471.92
5. Step 5: Solve for x
   x = 13,288,943,471.92/138,762.10
6. Step 6: Final answer
   x = 95,767.82