Finding the Fourth Proportional to 392,131.56, 588,252.42 and 155,498.16

Step by Step Solution

1. Step 1: Write the proportion equation
   392,131.56 : 588,252.42 = 155,498.16 : x
2. Step 2: Convert to fraction form
   392,131.56/588,252.42 = 155,498.16/x
3. Step 3: Cross multiply
   392,131.56x = 588,252.42 × 155,498.16
4. Step 4: Simplify right side
   392,131.56x = 91,472,168,925.55
5. Step 5: Solve for x
   x = 91,472,168,925.55/392,131.56
6. Step 6: Final answer
   x = 233,269.08