Finding the Fourth Proportional to 9,518.31, 13,134.48 and 5,689.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,518.31 : 13,134.48 = 5,689.86 : x
2. Step 2: Convert to fraction form
   9,518.31/13,134.48 = 5,689.86/x
3. Step 3: Cross multiply
   9,518.31x = 13,134.48 × 5,689.86
4. Step 4: Simplify right side
   9,518.31x = 74,733,352.37
5. Step 5: Solve for x
   x = 74,733,352.37/9,518.31
6. Step 6: Final answer
   x = 7,851.54