Finding the Fourth Proportional to 67,720.59, 93,500.60 and 42,236.91

Step by Step Solution

1. Step 1: Write the proportion equation
   67,720.59 : 93,500.60 = 42,236.91 : x
2. Step 2: Convert to fraction form
   67,720.59/93,500.60 = 42,236.91/x
3. Step 3: Cross multiply
   67,720.59x = 93,500.60 × 42,236.91
4. Step 4: Simplify right side
   67,720.59x = 3,949,176,215.96
5. Step 5: Solve for x
   x = 3,949,176,215.96/67,720.59
6. Step 6: Final answer
   x = 58,315.74