Finding the Fourth Proportional to 10,300.17, 15,526.40 and 9,698.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.17 : 15,526.40 = 9,698.15 : x
2. Step 2: Convert to fraction form
   10,300.17/15,526.40 = 9,698.15/x
3. Step 3: Cross multiply
   10,300.17x = 15,526.40 × 9,698.15
4. Step 4: Simplify right side
   10,300.17x = 150,577,356.16
5. Step 5: Solve for x
   x = 150,577,356.16/10,300.17
6. Step 6: Final answer
   x = 14,618.92