Finding the Fourth Proportional to 156,997.67, 216,662.50 and 89,942.63

Step by Step Solution

1. Step 1: Write the proportion equation
   156,997.67 : 216,662.50 = 89,942.63 : x
2. Step 2: Convert to fraction form
   156,997.67/216,662.50 = 89,942.63/x
3. Step 3: Cross multiply
   156,997.67x = 216,662.50 × 89,942.63
4. Step 4: Simplify right side
   156,997.67x = 19,487,195,072.38
5. Step 5: Solve for x
   x = 19,487,195,072.38/156,997.67
6. Step 6: Final answer
   x = 124,124.10