Finding the Fourth Proportional to 13,011.55, 19,517.37 and 3,150.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,011.55 : 19,517.37 = 3,150.81 : x
2. Step 2: Convert to fraction form
   13,011.55/19,517.37 = 3,150.81/x
3. Step 3: Cross multiply
   13,011.55x = 19,517.37 × 3,150.81
4. Step 4: Simplify right side
   13,011.55x = 61,495,524.57
5. Step 5: Solve for x
   x = 61,495,524.57/13,011.55
6. Step 6: Final answer
   x = 4,726.23