Finding the Fourth Proportional to 11,902.88, 16,422.72 and 7,427.35

Step by Step Solution

1. Step 1: Write the proportion equation
   11,902.88 : 16,422.72 = 7,427.35 : x
2. Step 2: Convert to fraction form
   11,902.88/16,422.72 = 7,427.35/x
3. Step 3: Cross multiply
   11,902.88x = 16,422.72 × 7,427.35
4. Step 4: Simplify right side
   11,902.88x = 121,977,390.93
5. Step 5: Solve for x
   x = 121,977,390.93/11,902.88
6. Step 6: Final answer
   x = 10,247.72