Finding the Fourth Proportional to 64,477.92, 88,956.72 and 42,134.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,477.92 : 88,956.72 = 42,134.88 : x
2. Step 2: Convert to fraction form
   64,477.92/88,956.72 = 42,134.88/x
3. Step 3: Cross multiply
   64,477.92x = 88,956.72 × 42,134.88
4. Step 4: Simplify right side
   64,477.92x = 3,748,180,722.39
5. Step 5: Solve for x
   x = 3,748,180,722.39/64,477.92
6. Step 6: Final answer
   x = 58,131.23