Finding the Fourth Proportional to 64,472.76, 88,931.76 and 42,955.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,472.76 : 88,931.76 = 42,955.72 : x
2. Step 2: Convert to fraction form
   64,472.76/88,931.76 = 42,955.72/x
3. Step 3: Cross multiply
   64,472.76x = 88,931.76 × 42,955.72
4. Step 4: Simplify right side
   64,472.76x = 3,820,127,781.67
5. Step 5: Solve for x
   x = 3,820,127,781.67/64,472.76
6. Step 6: Final answer
   x = 59,251.81