Finding the Fourth Proportional to 10,550.07, 15,828.76 and 3,978.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,550.07 : 15,828.76 = 3,978.14 : x
2. Step 2: Convert to fraction form
   10,550.07/15,828.76 = 3,978.14/x
3. Step 3: Cross multiply
   10,550.07x = 15,828.76 × 3,978.14
4. Step 4: Simplify right side
   10,550.07x = 62,969,023.31
5. Step 5: Solve for x
   x = 62,969,023.31/10,550.07
6. Step 6: Final answer
   x = 5,968.59