Finding the Fourth Proportional to 9,263.63, 12,784.53 and 5,285.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,263.63 : 12,784.53 = 5,285.93 : x
2. Step 2: Convert to fraction form
   9,263.63/12,784.53 = 5,285.93/x
3. Step 3: Cross multiply
   9,263.63x = 12,784.53 × 5,285.93
4. Step 4: Simplify right side
   9,263.63x = 67,578,086.56
5. Step 5: Solve for x
   x = 67,578,086.56/9,263.63
6. Step 6: Final answer
   x = 7,294.99