Finding the Fourth Proportional to 78,425.24, 108,227.51 and 42,615.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,425.24 : 108,227.51 = 42,615.25 : x
2. Step 2: Convert to fraction form
   78,425.24/108,227.51 = 42,615.25/x
3. Step 3: Cross multiply
   78,425.24x = 108,227.51 × 42,615.25
4. Step 4: Simplify right side
   78,425.24x = 4,612,141,911.88
5. Step 5: Solve for x
   x = 4,612,141,911.88/78,425.24
6. Step 6: Final answer
   x = 58,809.41