Finding the Fourth Proportional to 9,300.57, 12,835.71 and 5,322.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.57 : 12,835.71 = 5,322.39 : x
2. Step 2: Convert to fraction form
   9,300.57/12,835.71 = 5,322.39/x
3. Step 3: Cross multiply
   9,300.57x = 12,835.71 × 5,322.39
4. Step 4: Simplify right side
   9,300.57x = 68,316,654.55
5. Step 5: Solve for x
   x = 68,316,654.55/9,300.57
6. Step 6: Final answer
   x = 7,345.43