Finding the Fourth Proportional to 42,175.52, 63,294.12 and 31,112.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,175.52 : 63,294.12 = 31,112.04 : x
2. Step 2: Convert to fraction form
   42,175.52/63,294.12 = 31,112.04/x
3. Step 3: Cross multiply
   42,175.52x = 63,294.12 × 31,112.04
4. Step 4: Simplify right side
   42,175.52x = 1,969,209,193.20
5. Step 5: Solve for x
   x = 1,969,209,193.20/42,175.52
6. Step 6: Final answer
   x = 46,690.81