Finding the Fourth Proportional to 13,499.98, 18,629.95 and 7,531.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,499.98 : 18,629.95 = 7,531.30 : x
2. Step 2: Convert to fraction form
   13,499.98/18,629.95 = 7,531.30/x
3. Step 3: Cross multiply
   13,499.98x = 18,629.95 × 7,531.30
4. Step 4: Simplify right side
   13,499.98x = 140,307,656.22
5. Step 5: Solve for x
   x = 140,307,656.22/13,499.98
6. Step 6: Final answer
   x = 10,393.17