Finding the Fourth Proportional to 429,719.76, 593,013.96 and 238,734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   429,719.76 : 593,013.96 = 238,734.72 : x
2. Step 2: Convert to fraction form
   429,719.76/593,013.96 = 238,734.72/x
3. Step 3: Cross multiply
   429,719.76x = 593,013.96 × 238,734.72
4. Step 4: Simplify right side
   429,719.76x = 141,573,021,696.69
5. Step 5: Solve for x
   x = 141,573,021,696.69/429,719.76
6. Step 6: Final answer
   x = 329,454.30