Finding the Fourth Proportional to 42,240.88, 63,443.33 and 31,103.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,240.88 : 63,443.33 = 31,103.58 : x
2. Step 2: Convert to fraction form
   42,240.88/63,443.33 = 31,103.58/x
3. Step 3: Cross multiply
   42,240.88x = 63,443.33 × 31,103.58
4. Step 4: Simplify right side
   42,240.88x = 1,973,314,690.12
5. Step 5: Solve for x
   x = 1,973,314,690.12/42,240.88
6. Step 6: Final answer
   x = 46,715.76