Finding the Fourth Proportional to 428,878.10, 591,922.76 and 237,953.00

Step by Step Solution

1. Step 1: Write the proportion equation
   428,878.10 : 591,922.76 = 237,953.00 : x
2. Step 2: Convert to fraction form
   428,878.10/591,922.76 = 237,953.00/x
3. Step 3: Cross multiply
   428,878.10x = 591,922.76 × 237,953.00
4. Step 4: Simplify right side
   428,878.10x = 140,849,792,360.90
5. Step 5: Solve for x
   x = 140,849,792,360.90/428,878.10
6. Step 6: Final answer
   x = 328,414.52