Finding the Fourth Proportional to 78,797.85, 108,741.81 and 42,987.97

Step by Step Solution

1. Step 1: Write the proportion equation
   78,797.85 : 108,741.81 = 42,987.97 : x
2. Step 2: Convert to fraction form
   78,797.85/108,741.81 = 42,987.97/x
3. Step 3: Cross multiply
   78,797.85x = 108,741.81 × 42,987.97
4. Step 4: Simplify right side
   78,797.85x = 4,674,589,666.03
5. Step 5: Solve for x
   x = 4,674,589,666.03/78,797.85
6. Step 6: Final answer
   x = 59,323.82