Finding the Fourth Proportional to 64,469.92, 88,945.68 and 42,126.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,469.92 : 88,945.68 = 42,126.88 : x
2. Step 2: Convert to fraction form
   64,469.92/88,945.68 = 42,126.88/x
3. Step 3: Cross multiply
   64,469.92x = 88,945.68 × 42,126.88
4. Step 4: Simplify right side
   64,469.92x = 3,747,003,987.88
5. Step 5: Solve for x
   x = 3,747,003,987.88/64,469.92
6. Step 6: Final answer
   x = 58,120.19