Finding the Fourth Proportional to 9,513.06, 13,127.31 and 5,320.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,513.06 : 13,127.31 = 5,320.50 : x
2. Step 2: Convert to fraction form
   9,513.06/13,127.31 = 5,320.50/x
3. Step 3: Cross multiply
   9,513.06x = 13,127.31 × 5,320.50
4. Step 4: Simplify right side
   9,513.06x = 69,843,852.86
5. Step 5: Solve for x
   x = 69,843,852.86/9,513.06
6. Step 6: Final answer
   x = 7,341.89