Finding the Fourth Proportional to 79,862.23, 119,691.59 and 42,440.23

Step by Step Solution

1. Step 1: Write the proportion equation
   79,862.23 : 119,691.59 = 42,440.23 : x
2. Step 2: Convert to fraction form
   79,862.23/119,691.59 = 42,440.23/x
3. Step 3: Cross multiply
   79,862.23x = 119,691.59 × 42,440.23
4. Step 4: Simplify right side
   79,862.23x = 5,079,738,705.23
5. Step 5: Solve for x
   x = 5,079,738,705.23/79,862.23
6. Step 6: Final answer
   x = 63,606.27