Finding the Fourth Proportional to 428,828.24, 591,762.12 and 237,824.72

Step by Step Solution

1. Step 1: Write the proportion equation
   428,828.24 : 591,762.12 = 237,824.72 : x
2. Step 2: Convert to fraction form
   428,828.24/591,762.12 = 237,824.72/x
3. Step 3: Cross multiply
   428,828.24x = 591,762.12 × 237,824.72
4. Step 4: Simplify right side
   428,828.24x = 140,735,660,495.61
5. Step 5: Solve for x
   x = 140,735,660,495.61/428,828.24
6. Step 6: Final answer
   x = 328,186.55