Finding the Fourth Proportional to 78,167.50, 107,871.15 and 42,357.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,167.50 : 107,871.15 = 42,357.22 : x
2. Step 2: Convert to fraction form
   78,167.50/107,871.15 = 42,357.22/x
3. Step 3: Cross multiply
   78,167.50x = 107,871.15 × 42,357.22
4. Step 4: Simplify right side
   78,167.50x = 4,569,122,032.20
5. Step 5: Solve for x
   x = 4,569,122,032.20/78,167.50
6. Step 6: Final answer
   x = 58,452.96