Finding the Fourth Proportional to 13,018.69, 19,527.97 and 3,158.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.69 : 19,527.97 = 3,158.05 : x
2. Step 2: Convert to fraction form
   13,018.69/19,527.97 = 3,158.05/x
3. Step 3: Cross multiply
   13,018.69x = 19,527.97 × 3,158.05
4. Step 4: Simplify right side
   13,018.69x = 61,670,332.26
5. Step 5: Solve for x
   x = 61,670,332.26/13,018.69
6. Step 6: Final answer
   x = 4,737.06