Finding the Fourth Proportional to 112,375.80, 168,570.17 and 42,255.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,375.80 : 168,570.17 = 42,255.72 : x
2. Step 2: Convert to fraction form
   112,375.80/168,570.17 = 42,255.72/x
3. Step 3: Cross multiply
   112,375.80x = 168,570.17 × 42,255.72
4. Step 4: Simplify right side
   112,375.80x = 7,123,053,903.87
5. Step 5: Solve for x
   x = 7,123,053,903.87/112,375.80
6. Step 6: Final answer
   x = 63,386.01