Finding the Fourth Proportional to 67,731.56, 93,515.24 and 42,276.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67,731.56 : 93,515.24 = 42,276.72 : x
2. Step 2: Convert to fraction form
   67,731.56/93,515.24 = 42,276.72/x
3. Step 3: Cross multiply
   67,731.56x = 93,515.24 × 42,276.72
4. Step 4: Simplify right side
   67,731.56x = 3,953,517,617.21
5. Step 5: Solve for x
   x = 3,953,517,617.21/67,731.56
6. Step 6: Final answer
   x = 58,370.39