Finding the Fourth Proportional to 78,974.72, 108,953.92 and 45,422.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,974.72 : 108,953.92 = 45,422.72 : x
2. Step 2: Convert to fraction form
   78,974.72/108,953.92 = 45,422.72/x
3. Step 3: Cross multiply
   78,974.72x = 108,953.92 × 45,422.72
4. Step 4: Simplify right side
   78,974.72x = 4,948,983,401.06
5. Step 5: Solve for x
   x = 4,948,983,401.06/78,974.72
6. Step 6: Final answer
   x = 62,665.41