Finding the Fourth Proportional to 355,642.47, 533,743.92 and 156,100.59

Step by Step Solution

1. Step 1: Write the proportion equation
   355,642.47 : 533,743.92 = 156,100.59 : x
2. Step 2: Convert to fraction form
   355,642.47/533,743.92 = 156,100.59/x
3. Step 3: Cross multiply
   355,642.47x = 533,743.92 × 156,100.59
4. Step 4: Simplify right side
   355,642.47x = 83,317,740,820.91
5. Step 5: Solve for x
   x = 83,317,740,820.91/355,642.47
6. Step 6: Final answer
   x = 234,273.88