Finding the Fourth Proportional to 10,047.30, 15,056.10 and 7,279.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,047.30 : 15,056.10 = 7,279.80 : x
2. Step 2: Convert to fraction form
   10,047.30/15,056.10 = 7,279.80/x
3. Step 3: Cross multiply
   10,047.30x = 15,056.10 × 7,279.80
4. Step 4: Simplify right side
   10,047.30x = 109,605,396.78
5. Step 5: Solve for x
   x = 109,605,396.78/10,047.30
6. Step 6: Final answer
   x = 10,908.94