Finding the Fourth Proportional to 11,931.78, 16,462.53 and 7,460.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,931.78 : 16,462.53 = 7,460.09 : x
2. Step 2: Convert to fraction form
   11,931.78/16,462.53 = 7,460.09/x
3. Step 3: Cross multiply
   11,931.78x = 16,462.53 × 7,460.09
4. Step 4: Simplify right side
   11,931.78x = 122,811,873.12
5. Step 5: Solve for x
   x = 122,811,873.12/11,931.78
6. Step 6: Final answer
   x = 10,292.84