Finding the Fourth Proportional to 13,810.02, 19,057.64 and 7,522.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,810.02 : 19,057.64 = 7,522.39 : x
2. Step 2: Convert to fraction form
   13,810.02/19,057.64 = 7,522.39/x
3. Step 3: Cross multiply
   13,810.02x = 19,057.64 × 7,522.39
4. Step 4: Simplify right side
   13,810.02x = 143,359,000.56
5. Step 5: Solve for x
   x = 143,359,000.56/13,810.02
6. Step 6: Final answer
   x = 10,380.80