Finding the Fourth Proportional to 88,664.96, 122,188.80 and 63,470.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,664.96 : 122,188.80 = 63,470.72 : x
2. Step 2: Convert to fraction form
   88,664.96/122,188.80 = 63,470.72/x
3. Step 3: Cross multiply
   88,664.96x = 122,188.80 × 63,470.72
4. Step 4: Simplify right side
   88,664.96x = 7,755,411,111.94
5. Step 5: Solve for x
   x = 7,755,411,111.94/88,664.96
6. Step 6: Final answer
   x = 87,468.73