Finding the Fourth Proportional to 13,858.62, 19,124.82 and 7,570.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,858.62 : 19,124.82 = 7,570.98 : x
2. Step 2: Convert to fraction form
   13,858.62/19,124.82 = 7,570.98/x
3. Step 3: Cross multiply
   13,858.62x = 19,124.82 × 7,570.98
4. Step 4: Simplify right side
   13,858.62x = 144,793,629.72
5. Step 5: Solve for x
   x = 144,793,629.72/13,858.62
6. Step 6: Final answer
   x = 10,447.91