Finding the Fourth Proportional to 13,812.16, 19,060.78 and 7,524.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,812.16 : 19,060.78 = 7,524.54 : x
2. Step 2: Convert to fraction form
   13,812.16/19,060.78 = 7,524.54/x
3. Step 3: Cross multiply
   13,812.16x = 19,060.78 × 7,524.54
4. Step 4: Simplify right side
   13,812.16x = 143,423,601.54
5. Step 5: Solve for x
   x = 143,423,601.54/13,812.16
6. Step 6: Final answer
   x = 10,383.86