Finding the Fourth Proportional to 11,915.02, 17,872.20 and 3,150.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,915.02 : 17,872.20 = 3,150.01 : x
2. Step 2: Convert to fraction form
   11,915.02/17,872.20 = 3,150.01/x
3. Step 3: Cross multiply
   11,915.02x = 17,872.20 × 3,150.01
4. Step 4: Simplify right side
   11,915.02x = 56,297,608.72
5. Step 5: Solve for x
   x = 56,297,608.72/11,915.02
6. Step 6: Final answer
   x = 4,724.93