Finding the Fourth Proportional to 10,081.80, 15,112.38 and 9,828.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.80 : 15,112.38 = 9,828.84 : x
2. Step 2: Convert to fraction form
   10,081.80/15,112.38 = 9,828.84/x
3. Step 3: Cross multiply
   10,081.80x = 15,112.38 × 9,828.84
4. Step 4: Simplify right side
   10,081.80x = 148,537,165.04
5. Step 5: Solve for x
   x = 148,537,165.04/10,081.80
6. Step 6: Final answer
   x = 14,733.20