Finding the Fourth Proportional to 156,061.89, 215,363.84 and 84,440.34

Step by Step Solution

1. Step 1: Write the proportion equation
   156,061.89 : 215,363.84 = 84,440.34 : x
2. Step 2: Convert to fraction form
   156,061.89/215,363.84 = 84,440.34/x
3. Step 3: Cross multiply
   156,061.89x = 215,363.84 × 84,440.34
4. Step 4: Simplify right side
   156,061.89x = 18,185,395,451.10
5. Step 5: Solve for x
   x = 18,185,395,451.10/156,061.89
6. Step 6: Final answer
   x = 116,526.82