Finding the Fourth Proportional to 155,784.10, 233,676.17 and 89,177.31

Step by Step Solution

1. Step 1: Write the proportion equation
   155,784.10 : 233,676.17 = 89,177.31 : x
2. Step 2: Convert to fraction form
   155,784.10/233,676.17 = 89,177.31/x
3. Step 3: Cross multiply
   155,784.10x = 233,676.17 × 89,177.31
4. Step 4: Simplify right side
   155,784.10x = 20,838,612,251.70
5. Step 5: Solve for x
   x = 20,838,612,251.70/155,784.10
6. Step 6: Final answer
   x = 133,765.98