Finding the Fourth Proportional to 78,079.18, 107,748.51 and 42,268.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,079.18 : 107,748.51 = 42,268.27 : x
2. Step 2: Convert to fraction form
   78,079.18/107,748.51 = 42,268.27/x
3. Step 3: Cross multiply
   78,079.18x = 107,748.51 × 42,268.27
4. Step 4: Simplify right side
   78,079.18x = 4,554,343,112.78
5. Step 5: Solve for x
   x = 4,554,343,112.78/78,079.18
6. Step 6: Final answer
   x = 58,329.80