Finding the Fourth Proportional to 414,216.72, 571,607.52 and 250,969.89

Step by Step Solution

1. Step 1: Write the proportion equation
   414,216.72 : 571,607.52 = 250,969.89 : x
2. Step 2: Convert to fraction form
   414,216.72/571,607.52 = 250,969.89/x
3. Step 3: Cross multiply
   414,216.72x = 571,607.52 × 250,969.89
4. Step 4: Simplify right side
   414,216.72x = 143,456,276,417.57
5. Step 5: Solve for x
   x = 143,456,276,417.57/414,216.72
6. Step 6: Final answer
   x = 346,331.45