Finding the Fourth Proportional to 156,061.49, 215,363.33 and 84,439.94

Step by Step Solution

1. Step 1: Write the proportion equation
   156,061.49 : 215,363.33 = 84,439.94 : x
2. Step 2: Convert to fraction form
   156,061.49/215,363.33 = 84,439.94/x
3. Step 3: Cross multiply
   156,061.49x = 215,363.33 × 84,439.94
4. Step 4: Simplify right side
   156,061.49x = 18,185,266,779.61
5. Step 5: Solve for x
   x = 18,185,266,779.61/156,061.49
6. Step 6: Final answer
   x = 116,526.29