Finding the Fourth Proportional to 225,646.72, 338,498.88 and 75,822.72

Step by Step Solution

1. Step 1: Write the proportion equation
   225,646.72 : 338,498.88 = 75,822.72 : x
2. Step 2: Convert to fraction form
   225,646.72/338,498.88 = 75,822.72/x
3. Step 3: Cross multiply
   225,646.72x = 338,498.88 × 75,822.72
4. Step 4: Simplify right side
   225,646.72x = 25,665,905,798.55
5. Step 5: Solve for x
   x = 25,665,905,798.55/225,646.72
6. Step 6: Final answer
   x = 113,743.76