Finding the Fourth Proportional to 429,565.28, 592,864.72 and 309,105.32

Step by Step Solution

1. Step 1: Write the proportion equation
   429,565.28 : 592,864.72 = 309,105.32 : x
2. Step 2: Convert to fraction form
   429,565.28/592,864.72 = 309,105.32/x
3. Step 3: Cross multiply
   429,565.28x = 592,864.72 × 309,105.32
4. Step 4: Simplify right side
   429,565.28x = 183,257,635,255.22
5. Step 5: Solve for x
   x = 183,257,635,255.22/429,565.28
6. Step 6: Final answer
   x = 426,611.85