Finding the Fourth Proportional to 13,039.16, 19,559.01 and 3,178.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,039.16 : 19,559.01 = 3,178.49 : x
2. Step 2: Convert to fraction form
   13,039.16/19,559.01 = 3,178.49/x
3. Step 3: Cross multiply
   13,039.16x = 19,559.01 × 3,178.49
4. Step 4: Simplify right side
   13,039.16x = 62,168,117.69
5. Step 5: Solve for x
   x = 62,168,117.69/13,039.16
6. Step 6: Final answer
   x = 4,767.80