Finding the Fourth Proportional to 156,995.50, 216,673.41 and 89,927.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,995.50 : 216,673.41 = 89,927.50 : x
2. Step 2: Convert to fraction form
   156,995.50/216,673.41 = 89,927.50/x
3. Step 3: Cross multiply
   156,995.50x = 216,673.41 × 89,927.50
4. Step 4: Simplify right side
   156,995.50x = 19,484,898,077.78
5. Step 5: Solve for x
   x = 19,484,898,077.78/156,995.50
6. Step 6: Final answer
   x = 124,111.19