Finding the Fourth Proportional to 9,264.18, 12,784.77 and 5,072.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,264.18 : 12,784.77 = 5,072.70 : x
2. Step 2: Convert to fraction form
   9,264.18/12,784.77 = 5,072.70/x
3. Step 3: Cross multiply
   9,264.18x = 12,784.77 × 5,072.70
4. Step 4: Simplify right side
   9,264.18x = 64,853,302.78
5. Step 5: Solve for x
   x = 64,853,302.78/9,264.18
6. Step 6: Final answer
   x = 7,000.44