Finding the Fourth Proportional to 13,818.99, 19,070.25 and 7,531.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,818.99 : 19,070.25 = 7,531.37 : x
2. Step 2: Convert to fraction form
   13,818.99/19,070.25 = 7,531.37/x
3. Step 3: Cross multiply
   13,818.99x = 19,070.25 × 7,531.37
4. Step 4: Simplify right side
   13,818.99x = 143,625,013.39
5. Step 5: Solve for x
   x = 143,625,013.39/13,818.99
6. Step 6: Final answer
   x = 10,393.31