Finding the Fourth Proportional to 9,300.58, 12,835.65 and 5,320.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.58 : 12,835.65 = 5,320.87 : x
2. Step 2: Convert to fraction form
   9,300.58/12,835.65 = 5,320.87/x
3. Step 3: Cross multiply
   9,300.58x = 12,835.65 × 5,320.87
4. Step 4: Simplify right side
   9,300.58x = 68,296,825.02
5. Step 5: Solve for x
   x = 68,296,825.02/9,300.58
6. Step 6: Final answer
   x = 7,343.29