Finding the Fourth Proportional to 13,858.28, 19,124.52 and 7,570.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,858.28 : 19,124.52 = 7,570.76 : x
2. Step 2: Convert to fraction form
   13,858.28/19,124.52 = 7,570.76/x
3. Step 3: Cross multiply
   13,858.28x = 19,124.52 × 7,570.76
4. Step 4: Simplify right side
   13,858.28x = 144,787,151.04
5. Step 5: Solve for x
   x = 144,787,151.04/13,858.28
6. Step 6: Final answer
   x = 10,447.70