Finding the Fourth Proportional to 156,984.50, 216,658.24 and 89,916.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,984.50 : 216,658.24 = 89,916.50 : x
2. Step 2: Convert to fraction form
   156,984.50/216,658.24 = 89,916.50/x
3. Step 3: Cross multiply
   156,984.50x = 216,658.24 × 89,916.50
4. Step 4: Simplify right side
   156,984.50x = 19,481,150,636.96
5. Step 5: Solve for x
   x = 19,481,150,636.96/156,984.50
6. Step 6: Final answer
   x = 124,096.01