Finding the Fourth Proportional to 108,402.32, 162,374.52 and 89,636.24

Step by Step Solution

1. Step 1: Write the proportion equation
   108,402.32 : 162,374.52 = 89,636.24 : x
2. Step 2: Convert to fraction form
   108,402.32/162,374.52 = 89,636.24/x
3. Step 3: Cross multiply
   108,402.32x = 162,374.52 × 89,636.24
4. Step 4: Simplify right side
   108,402.32x = 14,554,641,444.60
5. Step 5: Solve for x
   x = 14,554,641,444.60/108,402.32
6. Step 6: Final answer
   x = 134,265.04