Finding the Fourth Proportional to 78,081.16, 107,752.04 and 42,271.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,081.16 : 107,752.04 = 42,271.18 : x
2. Step 2: Convert to fraction form
   78,081.16/107,752.04 = 42,271.18/x
3. Step 3: Cross multiply
   78,081.16x = 107,752.04 × 42,271.18
4. Step 4: Simplify right side
   78,081.16x = 4,554,805,878.21
5. Step 5: Solve for x
   x = 4,554,805,878.21/78,081.16
6. Step 6: Final answer
   x = 58,334.25