Finding the Fourth Proportional to 78,143.24, 107,838.18 and 42,333.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,143.24 : 107,838.18 = 42,333.22 : x
2. Step 2: Convert to fraction form
   78,143.24/107,838.18 = 42,333.22/x
3. Step 3: Cross multiply
   78,143.24x = 107,838.18 × 42,333.22
4. Step 4: Simplify right side
   78,143.24x = 4,565,137,398.34
5. Step 5: Solve for x
   x = 4,565,137,398.34/78,143.24
6. Step 6: Final answer
   x = 58,420.12