Finding the Fourth Proportional to 59,931.20, 82,736.15 and 43,780.38

Step by Step Solution

1. Step 1: Write the proportion equation
   59,931.20 : 82,736.15 = 43,780.38 : x
2. Step 2: Convert to fraction form
   59,931.20/82,736.15 = 43,780.38/x
3. Step 3: Cross multiply
   59,931.20x = 82,736.15 × 43,780.38
4. Step 4: Simplify right side
   59,931.20x = 3,622,220,196.19
5. Step 5: Solve for x
   x = 3,622,220,196.19/59,931.20
6. Step 6: Final answer
   x = 60,439.64