Finding the Fourth Proportional to 10,499.04, 15,808.32 and 9,274.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.04 : 15,808.32 = 9,274.08 : x
2. Step 2: Convert to fraction form
   10,499.04/15,808.32 = 9,274.08/x
3. Step 3: Cross multiply
   10,499.04x = 15,808.32 × 9,274.08
4. Step 4: Simplify right side
   10,499.04x = 146,607,624.35
5. Step 5: Solve for x
   x = 146,607,624.35/10,499.04
6. Step 6: Final answer
   x = 13,963.91