Finding the Fourth Proportional to 156,092.39, 215,406.69 and 84,472.42

Step by Step Solution

1. Step 1: Write the proportion equation
   156,092.39 : 215,406.69 = 84,472.42 : x
2. Step 2: Convert to fraction form
   156,092.39/215,406.69 = 84,472.42/x
3. Step 3: Cross multiply
   156,092.39x = 215,406.69 × 84,472.42
4. Step 4: Simplify right side
   156,092.39x = 18,195,924,599.67
5. Step 5: Solve for x
   x = 18,195,924,599.67/156,092.39
6. Step 6: Final answer
   x = 116,571.51