Finding the Fourth Proportional to 10,013.80, 13,819.34 and 5,476.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,013.80 : 13,819.34 = 5,476.75 : x
2. Step 2: Convert to fraction form
   10,013.80/13,819.34 = 5,476.75/x
3. Step 3: Cross multiply
   10,013.80x = 13,819.34 × 5,476.75
4. Step 4: Simplify right side
   10,013.80x = 75,685,070.35
5. Step 5: Solve for x
   x = 75,685,070.35/10,013.80
6. Step 6: Final answer
   x = 7,558.08