Finding the Fourth Proportional to 13,857.88, 19,123.97 and 7,570.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,857.88 : 19,123.97 = 7,570.25 : x
2. Step 2: Convert to fraction form
   13,857.88/19,123.97 = 7,570.25/x
3. Step 3: Cross multiply
   13,857.88x = 19,123.97 × 7,570.25
4. Step 4: Simplify right side
   13,857.88x = 144,773,196.04
5. Step 5: Solve for x
   x = 144,773,196.04/13,857.88
6. Step 6: Final answer
   x = 10,447.00