Finding the Fourth Proportional to 64,475.92, 88,953.96 and 42,132.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,475.92 : 88,953.96 = 42,132.88 : x
2. Step 2: Convert to fraction form
   64,475.92/88,953.96 = 42,132.88/x
3. Step 3: Cross multiply
   64,475.92x = 88,953.96 × 42,132.88
4. Step 4: Simplify right side
   64,475.92x = 3,747,886,522.20
5. Step 5: Solve for x
   x = 3,747,886,522.20/64,475.92
6. Step 6: Final answer
   x = 58,128.47