Finding the Fourth Proportional to 78,301.98, 108,057.51 and 42,492.29

Step by Step Solution

1. Step 1: Write the proportion equation
   78,301.98 : 108,057.51 = 42,492.29 : x
2. Step 2: Convert to fraction form
   78,301.98/108,057.51 = 42,492.29/x
3. Step 3: Cross multiply
   78,301.98x = 108,057.51 × 42,492.29
4. Step 4: Simplify right side
   78,301.98x = 4,591,610,511.31
5. Step 5: Solve for x
   x = 4,591,610,511.31/78,301.98
6. Step 6: Final answer
   x = 58,639.78