Finding the Fourth Proportional to 78,080.91, 107,752.21 and 42,271.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,080.91 : 107,752.21 = 42,271.01 : x
2. Step 2: Convert to fraction form
   78,080.91/107,752.21 = 42,271.01/x
3. Step 3: Cross multiply
   78,080.91x = 107,752.21 × 42,271.01
4. Step 4: Simplify right side
   78,080.91x = 4,554,794,506.06
5. Step 5: Solve for x
   x = 4,554,794,506.06/78,080.91
6. Step 6: Final answer
   x = 58,334.29