Finding the Fourth Proportional to 293,443.70, 441,105.15 and 272,642.90

Step by Step Solution

1. Step 1: Write the proportion equation
   293,443.70 : 441,105.15 = 272,642.90 : x
2. Step 2: Convert to fraction form
   293,443.70/441,105.15 = 272,642.90/x
3. Step 3: Cross multiply
   293,443.70x = 441,105.15 × 272,642.90
4. Step 4: Simplify right side
   293,443.70x = 120,264,187,300.94
5. Step 5: Solve for x
   x = 120,264,187,300.94/293,443.70
6. Step 6: Final answer
   x = 409,837.35