Finding the Fourth Proportional to 88,066.50, 121,531.98 and 47,780.25

Step by Step Solution

1. Step 1: Write the proportion equation
   88,066.50 : 121,531.98 = 47,780.25 : x
2. Step 2: Convert to fraction form
   88,066.50/121,531.98 = 47,780.25/x
3. Step 3: Cross multiply
   88,066.50x = 121,531.98 × 47,780.25
4. Step 4: Simplify right side
   88,066.50x = 5,806,828,387.40
5. Step 5: Solve for x
   x = 5,806,828,387.40/88,066.50
6. Step 6: Final answer
   x = 65,936.86