Finding the Fourth Proportional to 78,624.26, 108,498.20 and 42,814.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,624.26 : 108,498.20 = 42,814.18 : x
2. Step 2: Convert to fraction form
   78,624.26/108,498.20 = 42,814.18/x
3. Step 3: Cross multiply
   78,624.26x = 108,498.20 × 42,814.18
4. Step 4: Simplify right side
   78,624.26x = 4,645,261,464.48
5. Step 5: Solve for x
   x = 4,645,261,464.48/78,624.26
6. Step 6: Final answer
   x = 59,081.78