Finding the Fourth Proportional to 11,851.78, 16,358.61 and 7,372.99

Step by Step Solution

1. Step 1: Write the proportion equation
   11,851.78 : 16,358.61 = 7,372.99 : x
2. Step 2: Convert to fraction form
   11,851.78/16,358.61 = 7,372.99/x
3. Step 3: Cross multiply
   11,851.78x = 16,358.61 × 7,372.99
4. Step 4: Simplify right side
   11,851.78x = 120,611,867.94
5. Step 5: Solve for x
   x = 120,611,867.94/11,851.78
6. Step 6: Final answer
   x = 10,176.69