Finding the Fourth Proportional to 13,010.88, 19,516.28 and 3,150.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,010.88 : 19,516.28 = 3,150.15 : x
2. Step 2: Convert to fraction form
   13,010.88/19,516.28 = 3,150.15/x
3. Step 3: Cross multiply
   13,010.88x = 19,516.28 × 3,150.15
4. Step 4: Simplify right side
   13,010.88x = 61,479,193.69
5. Step 5: Solve for x
   x = 61,479,193.69/13,010.88
6. Step 6: Final answer
   x = 4,725.21