Finding the Fourth Proportional to 9,263.97, 12,784.32 and 5,072.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,263.97 : 12,784.32 = 5,072.22 : x
2. Step 2: Convert to fraction form
   9,263.97/12,784.32 = 5,072.22/x
3. Step 3: Cross multiply
   9,263.97x = 12,784.32 × 5,072.22
4. Step 4: Simplify right side
   9,263.97x = 64,844,883.59
5. Step 5: Solve for x
   x = 64,844,883.59/9,263.97
6. Step 6: Final answer
   x = 6,999.69