Finding the Fourth Proportional to 102,298.32, 141,219.72 and 88,634.16

Step by Step Solution

1. Step 1: Write the proportion equation
   102,298.32 : 141,219.72 = 88,634.16 : x
2. Step 2: Convert to fraction form
   102,298.32/141,219.72 = 88,634.16/x
3. Step 3: Cross multiply
   102,298.32x = 141,219.72 × 88,634.16
4. Step 4: Simplify right side
   102,298.32x = 12,516,891,257.64
5. Step 5: Solve for x
   x = 12,516,891,257.64/102,298.32
6. Step 6: Final answer
   x = 122,356.76