Finding the Fourth Proportional to 10,354.69, 15,530.28 and 5,088.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,354.69 : 15,530.28 = 5,088.34 : x
2. Step 2: Convert to fraction form
   10,354.69/15,530.28 = 5,088.34/x
3. Step 3: Cross multiply
   10,354.69x = 15,530.28 × 5,088.34
4. Step 4: Simplify right side
   10,354.69x = 79,023,344.94
5. Step 5: Solve for x
   x = 79,023,344.94/10,354.69
6. Step 6: Final answer
   x = 7,631.65