Finding the Fourth Proportional to 11,373.78, 15,689.82 and 7,830.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,373.78 : 15,689.82 = 7,830.84 : x
2. Step 2: Convert to fraction form
   11,373.78/15,689.82 = 7,830.84/x
3. Step 3: Cross multiply
   11,373.78x = 15,689.82 × 7,830.84
4. Step 4: Simplify right side
   11,373.78x = 122,864,470.05
5. Step 5: Solve for x
   x = 122,864,470.05/11,373.78
6. Step 6: Final answer
   x = 10,802.43