Finding the Fourth Proportional to 13,818.79, 19,069.95 and 7,531.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,818.79 : 19,069.95 = 7,531.15 : x
2. Step 2: Convert to fraction form
   13,818.79/19,069.95 = 7,531.15/x
3. Step 3: Cross multiply
   13,818.79x = 19,069.95 × 7,531.15
4. Step 4: Simplify right side
   13,818.79x = 143,618,653.94
5. Step 5: Solve for x
   x = 143,618,653.94/13,818.79
6. Step 6: Final answer
   x = 10,393.00