Finding the Fourth Proportional to 9,688.76, 13,368.84 and 5,710.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,688.76 : 13,368.84 = 5,710.04 : x
2. Step 2: Convert to fraction form
   9,688.76/13,368.84 = 5,710.04/x
3. Step 3: Cross multiply
   9,688.76x = 13,368.84 × 5,710.04
4. Step 4: Simplify right side
   9,688.76x = 76,336,611.15
5. Step 5: Solve for x
   x = 76,336,611.15/9,688.76
6. Step 6: Final answer
   x = 7,878.88