Finding the Fourth Proportional to 10,478.61, 15,699.43 and 5,537.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,478.61 : 15,699.43 = 5,537.34 : x
2. Step 2: Convert to fraction form
   10,478.61/15,699.43 = 5,537.34/x
3. Step 3: Cross multiply
   10,478.61x = 15,699.43 × 5,537.34
4. Step 4: Simplify right side
   10,478.61x = 86,933,081.72
5. Step 5: Solve for x
   x = 86,933,081.72/10,478.61
6. Step 6: Final answer
   x = 8,296.24