Finding the Fourth Proportional to 69,588.88, 96,031.46 and 42,355.12

Step by Step Solution

1. Step 1: Write the proportion equation
   69,588.88 : 96,031.46 = 42,355.12 : x
2. Step 2: Convert to fraction form
   69,588.88/96,031.46 = 42,355.12/x
3. Step 3: Cross multiply
   69,588.88x = 96,031.46 × 42,355.12
4. Step 4: Simplify right side
   69,588.88x = 4,067,424,012.08
5. Step 5: Solve for x
   x = 4,067,424,012.08/69,588.88
6. Step 6: Final answer
   x = 58,449.34