Finding the Fourth Proportional to 78,168.24, 107,871.75 and 42,357.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,168.24 : 107,871.75 = 42,357.33 : x
2. Step 2: Convert to fraction form
   78,168.24/107,871.75 = 42,357.33/x
3. Step 3: Cross multiply
   78,168.24x = 107,871.75 × 42,357.33
4. Step 4: Simplify right side
   78,168.24x = 4,569,159,312.43
5. Step 5: Solve for x
   x = 4,569,159,312.43/78,168.24
6. Step 6: Final answer
   x = 58,452.89