Finding the Fourth Proportional to 13,810.19, 19,057.97 and 7,522.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,810.19 : 19,057.97 = 7,522.57 : x
2. Step 2: Convert to fraction form
   13,810.19/19,057.97 = 7,522.57/x
3. Step 3: Cross multiply
   13,810.19x = 19,057.97 × 7,522.57
4. Step 4: Simplify right side
   13,810.19x = 143,364,780.48
5. Step 5: Solve for x
   x = 143,364,780.48/13,810.19
6. Step 6: Final answer
   x = 10,381.09