Finding the Fourth Proportional to 9,513.21, 13,133.40 and 5,737.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,513.21 : 13,133.40 = 5,737.05 : x
2. Step 2: Convert to fraction form
   9,513.21/13,133.40 = 5,737.05/x
3. Step 3: Cross multiply
   9,513.21x = 13,133.40 × 5,737.05
4. Step 4: Simplify right side
   9,513.21x = 75,346,972.47
5. Step 5: Solve for x
   x = 75,346,972.47/9,513.21
6. Step 6: Final answer
   x = 7,920.25