Finding the Fourth Proportional to 13,051.52, 18,019.77 and 7,748.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,051.52 : 18,019.77 = 7,748.04 : x
2. Step 2: Convert to fraction form
   13,051.52/18,019.77 = 7,748.04/x
3. Step 3: Cross multiply
   13,051.52x = 18,019.77 × 7,748.04
4. Step 4: Simplify right side
   13,051.52x = 139,617,898.75
5. Step 5: Solve for x
   x = 139,617,898.75/13,051.52
6. Step 6: Final answer
   x = 10,697.44