Finding the Fourth Proportional to 625,111.94, 862,656.72 and 338,631.32

Step by Step Solution

1. Step 1: Write the proportion equation
   625,111.94 : 862,656.72 = 338,631.32 : x
2. Step 2: Convert to fraction form
   625,111.94/862,656.72 = 338,631.32/x
3. Step 3: Cross multiply
   625,111.94x = 862,656.72 × 338,631.32
4. Step 4: Simplify right side
   625,111.94x = 292,122,583,800.47
5. Step 5: Solve for x
   x = 292,122,583,800.47/625,111.94
6. Step 6: Final answer
   x = 467,312.44