Finding the Fourth Proportional to 13,810.29, 19,057.52 and 7,841.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,810.29 : 19,057.52 = 7,841.15 : x
2. Step 2: Convert to fraction form
   13,810.29/19,057.52 = 7,841.15/x
3. Step 3: Cross multiply
   13,810.29x = 19,057.52 × 7,841.15
4. Step 4: Simplify right side
   13,810.29x = 149,432,738.45
5. Step 5: Solve for x
   x = 149,432,738.45/13,810.29
6. Step 6: Final answer
   x = 10,820.39