Finding the Fourth Proportional to 156,849.37, 216,451.37 and 88,866.21

Step by Step Solution

1. Step 1: Write the proportion equation
   156,849.37 : 216,451.37 = 88,866.21 : x
2. Step 2: Convert to fraction form
   156,849.37/216,451.37 = 88,866.21/x
3. Step 3: Cross multiply
   156,849.37x = 216,451.37 × 88,866.21
4. Step 4: Simplify right side
   156,849.37x = 19,235,213,123.37
5. Step 5: Solve for x
   x = 19,235,213,123.37/156,849.37
6. Step 6: Final answer
   x = 122,634.94