Finding the Fourth Proportional to 156,995, 216,672.72 and 89,927

Step by Step Solution

1. Step 1: Write the proportion equation
   156,995 : 216,672.72 = 89,927 : x
2. Step 2: Convert to fraction form
   156,995/216,672.72 = 89,927/x
3. Step 3: Cross multiply
   156,995x = 216,672.72 × 89,927
4. Step 4: Simplify right side
   156,995x = 19,484,727,691.44
5. Step 5: Solve for x
   x = 19,484,727,691.44/156,995
6. Step 6: Final answer
   x = 124,110.50