Finding the Fourth Proportional to 78,386.43, 108,173.86 and 42,576.44

Step by Step Solution

1. Step 1: Write the proportion equation
   78,386.43 : 108,173.86 = 42,576.44 : x
2. Step 2: Convert to fraction form
   78,386.43/108,173.86 = 42,576.44/x
3. Step 3: Cross multiply
   78,386.43x = 108,173.86 × 42,576.44
4. Step 4: Simplify right side
   78,386.43x = 4,605,657,452.04
5. Step 5: Solve for x
   x = 4,605,657,452.04/78,386.43
6. Step 6: Final answer
   x = 58,755.80