Finding the Fourth Proportional to 78,425.10, 108,227.33 and 42,615.11

Step by Step Solution

1. Step 1: Write the proportion equation
   78,425.10 : 108,227.33 = 42,615.11 : x
2. Step 2: Convert to fraction form
   78,425.10/108,227.33 = 42,615.11/x
3. Step 3: Cross multiply
   78,425.10x = 108,227.33 × 42,615.11
4. Step 4: Simplify right side
   78,425.10x = 4,612,118,818.74
5. Step 5: Solve for x
   x = 4,612,118,818.74/78,425.10
6. Step 6: Final answer
   x = 58,809.22