Finding the Fourth Proportional to 429,570.72, 592,814.88 and 235,986.60

Step by Step Solution

1. Step 1: Write the proportion equation
   429,570.72 : 592,814.88 = 235,986.60 : x
2. Step 2: Convert to fraction form
   429,570.72/592,814.88 = 235,986.60/x
3. Step 3: Cross multiply
   429,570.72x = 592,814.88 × 235,986.60
4. Step 4: Simplify right side
   429,570.72x = 139,896,367,960.61
5. Step 5: Solve for x
   x = 139,896,367,960.61/429,570.72
6. Step 6: Final answer
   x = 325,665.51