Finding the Fourth Proportional to 13,897.48, 19,178.42 and 7,524.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,897.48 : 19,178.42 = 7,524.02 : x
2. Step 2: Convert to fraction form
   13,897.48/19,178.42 = 7,524.02/x
3. Step 3: Cross multiply
   13,897.48x = 19,178.42 × 7,524.02
4. Step 4: Simplify right side
   13,897.48x = 144,298,815.65
5. Step 5: Solve for x
   x = 144,298,815.65/13,897.48
6. Step 6: Final answer
   x = 10,383.10