Finding the Fourth Proportional to 88,098.52, 121,408.04 and 86,478.92

Step by Step Solution

1. Step 1: Write the proportion equation
   88,098.52 : 121,408.04 = 86,478.92 : x
2. Step 2: Convert to fraction form
   88,098.52/121,408.04 = 86,478.92/x
3. Step 3: Cross multiply
   88,098.52x = 121,408.04 × 86,478.92
4. Step 4: Simplify right side
   88,098.52x = 10,499,236,178.52
5. Step 5: Solve for x
   x = 10,499,236,178.52/88,098.52
6. Step 6: Final answer
   x = 119,176.08