Finding the Fourth Proportional to 13,276.10, 18,321.46 and 7,308.23

Step by Step Solution

1. Step 1: Write the proportion equation
   13,276.10 : 18,321.46 = 7,308.23 : x
2. Step 2: Convert to fraction form
   13,276.10/18,321.46 = 7,308.23/x
3. Step 3: Cross multiply
   13,276.10x = 18,321.46 × 7,308.23
4. Step 4: Simplify right side
   13,276.10x = 133,897,333.74
5. Step 5: Solve for x
   x = 133,897,333.74/13,276.10
6. Step 6: Final answer
   x = 10,085.59