Finding the Fourth Proportional to 625,626.72, 938,296.32 and 372,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   625,626.72 : 938,296.32 = 372,978.72 : x
2. Step 2: Convert to fraction form
   625,626.72/938,296.32 = 372,978.72/x
3. Step 3: Cross multiply
   625,626.72x = 938,296.32 × 372,978.72
4. Step 4: Simplify right side
   625,626.72x = 349,964,560,414.31
5. Step 5: Solve for x
   x = 349,964,560,414.31/625,626.72
6. Step 6: Final answer
   x = 559,382.37