Finding the Fourth Proportional to 13,493.99, 18,621.80 and 7,526.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,493.99 : 18,621.80 = 7,526.04 : x
2. Step 2: Convert to fraction form
   13,493.99/18,621.80 = 7,526.04/x
3. Step 3: Cross multiply
   13,493.99x = 18,621.80 × 7,526.04
4. Step 4: Simplify right side
   13,493.99x = 140,148,374.04
5. Step 5: Solve for x
   x = 140,148,374.04/13,493.99
6. Step 6: Final answer
   x = 10,385.99