Finding the Fourth Proportional to 10,400.52, 14,348.42 and 7,258.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,400.52 : 14,348.42 = 7,258.54 : x
2. Step 2: Convert to fraction form
   10,400.52/14,348.42 = 7,258.54/x
3. Step 3: Cross multiply
   10,400.52x = 14,348.42 × 7,258.54
4. Step 4: Simplify right side
   10,400.52x = 104,148,580.51
5. Step 5: Solve for x
   x = 104,148,580.51/10,400.52
6. Step 6: Final answer
   x = 10,013.79