Finding the Fourth Proportional to 3,940,142.72, 5,910,215.20 and 948,326.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940,142.72 : 5,910,215.20 = 948,326.72 : x
2. Step 2: Convert to fraction form
   3,940,142.72/5,910,215.20 = 948,326.72/x
3. Step 3: Cross multiply
   3,940,142.72x = 5,910,215.20 × 948,326.72
4. Step 4: Simplify right side
   3,940,142.72x = 5,604,814,995,110.14
5. Step 5: Solve for x
   x = 5,604,814,995,110.14/3,940,142.72
6. Step 6: Final answer
   x = 1,422,490.35