Finding the Fourth Proportional to 13,493.30, 18,620.72 and 7,524.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,493.30 : 18,620.72 = 7,524.98 : x
2. Step 2: Convert to fraction form
   13,493.30/18,620.72 = 7,524.98/x
3. Step 3: Cross multiply
   13,493.30x = 18,620.72 × 7,524.98
4. Step 4: Simplify right side
   13,493.30x = 140,120,460.53
5. Step 5: Solve for x
   x = 140,120,460.53/13,493.30
6. Step 6: Final answer
   x = 10,384.45