Finding the Fourth Proportional to 13,010.82, 19,516.14 and 3,150.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,010.82 : 19,516.14 = 3,150.15 : x
2. Step 2: Convert to fraction form
   13,010.82/19,516.14 = 3,150.15/x
3. Step 3: Cross multiply
   13,010.82x = 19,516.14 × 3,150.15
4. Step 4: Simplify right side
   13,010.82x = 61,478,768.42
5. Step 5: Solve for x
   x = 61,478,768.42/13,010.82
6. Step 6: Final answer
   x = 4,725.20