Finding the Fourth Proportional to 7,691.34, 10,602.99 and 5,479.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,691.34 : 10,602.99 = 5,479.50 : x
2. Step 2: Convert to fraction form
   7,691.34/10,602.99 = 5,479.50/x
3. Step 3: Cross multiply
   7,691.34x = 10,602.99 × 5,479.50
4. Step 4: Simplify right side
   7,691.34x = 58,099,083.71
5. Step 5: Solve for x
   x = 58,099,083.71/7,691.34
6. Step 6: Final answer
   x = 7,553.83