Finding the Fourth Proportional to 79,967.15, 120,023.27 and 42,558.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,967.15 : 120,023.27 = 42,558.72 : x
2. Step 2: Convert to fraction form
   79,967.15/120,023.27 = 42,558.72/x
3. Step 3: Cross multiply
   79,967.15x = 120,023.27 × 42,558.72
4. Step 4: Simplify right side
   79,967.15x = 5,108,036,238.13
5. Step 5: Solve for x
   x = 5,108,036,238.13/79,967.15
6. Step 6: Final answer
   x = 63,876.68