Finding the Fourth Proportional to 42,417.67, 63,626.10 and 25,782.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,417.67 : 63,626.10 = 25,782.31 : x
2. Step 2: Convert to fraction form
   42,417.67/63,626.10 = 25,782.31/x
3. Step 3: Cross multiply
   42,417.67x = 63,626.10 × 25,782.31
4. Step 4: Simplify right side
   42,417.67x = 1,640,427,834.29
5. Step 5: Solve for x
   x = 1,640,427,834.29/42,417.67
6. Step 6: Final answer
   x = 38,673.22