Finding the Fourth Proportional to 13,909.96, 19,196.31 and 7,862.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,909.96 : 19,196.31 = 7,862.56 : x
2. Step 2: Convert to fraction form
   13,909.96/19,196.31 = 7,862.56/x
3. Step 3: Cross multiply
   13,909.96x = 19,196.31 × 7,862.56
4. Step 4: Simplify right side
   13,909.96x = 150,932,192.98
5. Step 5: Solve for x
   x = 150,932,192.98/13,909.96
6. Step 6: Final answer
   x = 10,850.66