Finding the Fourth Proportional to 15,826.32, 21,841.25 and 8,753.40

Step by Step Solution

1. Step 1: Write the proportion equation
   15,826.32 : 21,841.25 = 8,753.40 : x
2. Step 2: Convert to fraction form
   15,826.32/21,841.25 = 8,753.40/x
3. Step 3: Cross multiply
   15,826.32x = 21,841.25 × 8,753.40
4. Step 4: Simplify right side
   15,826.32x = 191,185,153.98
5. Step 5: Solve for x
   x = 191,185,153.98/15,826.32
6. Step 6: Final answer
   x = 12,080.20