Finding the Fourth Proportional to 13,520.38, 18,656.46 and 7,551.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,520.38 : 18,656.46 = 7,551.84 : x
2. Step 2: Convert to fraction form
   13,520.38/18,656.46 = 7,551.84/x
3. Step 3: Cross multiply
   13,520.38x = 18,656.46 × 7,551.84
4. Step 4: Simplify right side
   13,520.38x = 140,890,600.89
5. Step 5: Solve for x
   x = 140,890,600.89/13,520.38
6. Step 6: Final answer
   x = 10,420.61