Finding the Fourth Proportional to 429,978.96, 593,213.76 and 260,151.12

Step by Step Solution

1. Step 1: Write the proportion equation
   429,978.96 : 593,213.76 = 260,151.12 : x
2. Step 2: Convert to fraction form
   429,978.96/593,213.76 = 260,151.12/x
3. Step 3: Cross multiply
   429,978.96x = 593,213.76 × 260,151.12
4. Step 4: Simplify right side
   429,978.96x = 154,325,224,063.41
5. Step 5: Solve for x
   x = 154,325,224,063.41/429,978.96
6. Step 6: Final answer
   x = 358,913.43