Finding the Fourth Proportional to 161,672.72, 223,113.90 and 93,689.82

Step by Step Solution

1. Step 1: Write the proportion equation
   161,672.72 : 223,113.90 = 93,689.82 : x
2. Step 2: Convert to fraction form
   161,672.72/223,113.90 = 93,689.82/x
3. Step 3: Cross multiply
   161,672.72x = 223,113.90 × 93,689.82
4. Step 4: Simplify right side
   161,672.72x = 20,903,501,130.50
5. Step 5: Solve for x
   x = 20,903,501,130.50/161,672.72
6. Step 6: Final answer
   x = 129,295.17