Finding the Fourth Proportional to 9,264.28, 12,784.68 and 5,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,264.28 : 12,784.68 = 5,072.50 : x
2. Step 2: Convert to fraction form
   9,264.28/12,784.68 = 5,072.50/x
3. Step 3: Cross multiply
   9,264.28x = 12,784.68 × 5,072.50
4. Step 4: Simplify right side
   9,264.28x = 64,850,289.30
5. Step 5: Solve for x
   x = 64,850,289.30/9,264.28
6. Step 6: Final answer
   x = 7,000.04