Finding the Fourth Proportional to 13,519.50, 18,656.72 and 7,551.26

Step by Step Solution

1. Step 1: Write the proportion equation
   13,519.50 : 18,656.72 = 7,551.26 : x
2. Step 2: Convert to fraction form
   13,519.50/18,656.72 = 7,551.26/x
3. Step 3: Cross multiply
   13,519.50x = 18,656.72 × 7,551.26
4. Step 4: Simplify right side
   13,519.50x = 140,881,612.43
5. Step 5: Solve for x
   x = 140,881,612.43/13,519.50
6. Step 6: Final answer
   x = 10,420.62