Finding the Fourth Proportional to 88,111.90, 121,591.17 and 47,824.81

Step by Step Solution

1. Step 1: Write the proportion equation
   88,111.90 : 121,591.17 = 47,824.81 : x
2. Step 2: Convert to fraction form
   88,111.90/121,591.17 = 47,824.81/x
3. Step 3: Cross multiply
   88,111.90x = 121,591.17 × 47,824.81
4. Step 4: Simplify right side
   88,111.90x = 5,815,074,298.95
5. Step 5: Solve for x
   x = 5,815,074,298.95/88,111.90
6. Step 6: Final answer
   x = 65,996.47