Finding the Fourth Proportional to 78,080.58, 107,752.05 and 42,271.35

Step by Step Solution

1. Step 1: Write the proportion equation
   78,080.58 : 107,752.05 = 42,271.35 : x
2. Step 2: Convert to fraction form
   78,080.58/107,752.05 = 42,271.35/x
3. Step 3: Cross multiply
   78,080.58x = 107,752.05 × 42,271.35
4. Step 4: Simplify right side
   78,080.58x = 4,554,824,618.77
5. Step 5: Solve for x
   x = 4,554,824,618.77/78,080.58
6. Step 6: Final answer
   x = 58,334.92