Finding the Fourth Proportional to 78,627.26, 108,502.34 and 42,817.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,627.26 : 108,502.34 = 42,817.18 : x
2. Step 2: Convert to fraction form
   78,627.26/108,502.34 = 42,817.18/x
3. Step 3: Cross multiply
   78,627.26x = 108,502.34 × 42,817.18
4. Step 4: Simplify right side
   78,627.26x = 4,645,764,222.20
5. Step 5: Solve for x
   x = 4,645,764,222.20/78,627.26
6. Step 6: Final answer
   x = 59,085.92