Finding the Fourth Proportional to 12,235.89, 16,885.25 and 7,199.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,235.89 : 16,885.25 = 7,199.01 : x
2. Step 2: Convert to fraction form
   12,235.89/16,885.25 = 7,199.01/x
3. Step 3: Cross multiply
   12,235.89x = 16,885.25 × 7,199.01
4. Step 4: Simplify right side
   12,235.89x = 121,557,047.61
5. Step 5: Solve for x
   x = 121,557,047.61/12,235.89
6. Step 6: Final answer
   x = 9,934.47