Finding the Fourth Proportional to 342,422.76, 472,531.50 and 189,458.52

Step by Step Solution

1. Step 1: Write the proportion equation
   342,422.76 : 472,531.50 = 189,458.52 : x
2. Step 2: Convert to fraction form
   342,422.76/472,531.50 = 189,458.52/x
3. Step 3: Cross multiply
   342,422.76x = 472,531.50 × 189,458.52
4. Step 4: Simplify right side
   342,422.76x = 89,525,118,643.38
5. Step 5: Solve for x
   x = 89,525,118,643.38/342,422.76
6. Step 6: Final answer
   x = 261,446.17