Finding the Fourth Proportional to 78,182.18, 107,891.37 and 42,372.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,182.18 : 107,891.37 = 42,372.18 : x
2. Step 2: Convert to fraction form
   78,182.18/107,891.37 = 42,372.18/x
3. Step 3: Cross multiply
   78,182.18x = 107,891.37 × 42,372.18
4. Step 4: Simplify right side
   78,182.18x = 4,571,592,550.09
5. Step 5: Solve for x
   x = 4,571,592,550.09/78,182.18
6. Step 6: Final answer
   x = 58,473.59