Finding the Fourth Proportional to 7,690.84, 10,602.30 and 5,479

Step by Step Solution

1. Step 1: Write the proportion equation
   7,690.84 : 10,602.30 = 5,479 : x
2. Step 2: Convert to fraction form
   7,690.84/10,602.30 = 5,479/x
3. Step 3: Cross multiply
   7,690.84x = 10,602.30 × 5,479
4. Step 4: Simplify right side
   7,690.84x = 58,090,001.70
5. Step 5: Solve for x
   x = 58,090,001.70/7,690.84
6. Step 6: Final answer
   x = 7,553.14