Finding the Fourth Proportional to 12,191.65, 16,822.42 and 7,410.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,191.65 : 16,822.42 = 7,410.77 : x
2. Step 2: Convert to fraction form
   12,191.65/16,822.42 = 7,410.77/x
3. Step 3: Cross multiply
   12,191.65x = 16,822.42 × 7,410.77
4. Step 4: Simplify right side
   12,191.65x = 124,667,085.46
5. Step 5: Solve for x
   x = 124,667,085.46/12,191.65
6. Step 6: Final answer
   x = 10,225.61