Finding the Fourth Proportional to 15,826.10, 21,838.55 and 8,752.37

Step by Step Solution

1. Step 1: Write the proportion equation
   15,826.10 : 21,838.55 = 8,752.37 : x
2. Step 2: Convert to fraction form
   15,826.10/21,838.55 = 8,752.37/x
3. Step 3: Cross multiply
   15,826.10x = 21,838.55 × 8,752.37
4. Step 4: Simplify right side
   15,826.10x = 191,138,916.91
5. Step 5: Solve for x
   x = 191,138,916.91/15,826.10
6. Step 6: Final answer
   x = 12,077.45