Finding the Fourth Proportional to 78,551.61, 108,399.47 and 42,741.71

Step by Step Solution

1. Step 1: Write the proportion equation
   78,551.61 : 108,399.47 = 42,741.71 : x
2. Step 2: Convert to fraction form
   78,551.61/108,399.47 = 42,741.71/x
3. Step 3: Cross multiply
   78,551.61x = 108,399.47 × 42,741.71
4. Step 4: Simplify right side
   78,551.61x = 4,633,178,361.69
5. Step 5: Solve for x
   x = 4,633,178,361.69/78,551.61
6. Step 6: Final answer
   x = 58,982.60