Finding the Fourth Proportional to 9,686.52, 13,369.50 and 5,706.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,686.52 : 13,369.50 = 5,706.18 : x
2. Step 2: Convert to fraction form
   9,686.52/13,369.50 = 5,706.18/x
3. Step 3: Cross multiply
   9,686.52x = 13,369.50 × 5,706.18
4. Step 4: Simplify right side
   9,686.52x = 76,288,773.51
5. Step 5: Solve for x
   x = 76,288,773.51/9,686.52
6. Step 6: Final answer
   x = 7,875.77