Finding the Fourth Proportional to 10,434.78, 14,407.26 and 7,285.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.78 : 14,407.26 = 7,285.50 : x
2. Step 2: Convert to fraction form
   10,434.78/14,407.26 = 7,285.50/x
3. Step 3: Cross multiply
   10,434.78x = 14,407.26 × 7,285.50
4. Step 4: Simplify right side
   10,434.78x = 104,964,092.73
5. Step 5: Solve for x
   x = 104,964,092.73/10,434.78
6. Step 6: Final answer
   x = 10,059.06