Finding the Fourth Proportional to 9,264.03, 12,784.37 and 5,072.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,264.03 : 12,784.37 = 5,072.28 : x
2. Step 2: Convert to fraction form
   9,264.03/12,784.37 = 5,072.28/x
3. Step 3: Cross multiply
   9,264.03x = 12,784.37 × 5,072.28
4. Step 4: Simplify right side
   9,264.03x = 64,845,904.26
5. Step 5: Solve for x
   x = 64,845,904.26/9,264.03
6. Step 6: Final answer
   x = 6,999.75