Finding the Fourth Proportional to 13,111.45, 19,650.76 and 10,327.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,111.45 : 19,650.76 = 10,327.13 : x
2. Step 2: Convert to fraction form
   13,111.45/19,650.76 = 10,327.13/x
3. Step 3: Cross multiply
   13,111.45x = 19,650.76 × 10,327.13
4. Step 4: Simplify right side
   13,111.45x = 202,935,953.12
5. Step 5: Solve for x
   x = 202,935,953.12/13,111.45
6. Step 6: Final answer
   x = 15,477.77