Finding the Fourth Proportional to 448,000.72, 618,240.71 and 246,796.72

Step by Step Solution

1. Step 1: Write the proportion equation
   448,000.72 : 618,240.71 = 246,796.72 : x
2. Step 2: Convert to fraction form
   448,000.72/618,240.71 = 246,796.72/x
3. Step 3: Cross multiply
   448,000.72x = 618,240.71 × 246,796.72
4. Step 4: Simplify right side
   448,000.72x = 152,579,779,398.47
5. Step 5: Solve for x
   x = 152,579,779,398.47/448,000.72
6. Step 6: Final answer
   x = 340,579.32