Finding the Fourth Proportional to 9,036.39, 12,470.04 and 5,261.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.39 : 12,470.04 = 5,261.79 : x
2. Step 2: Convert to fraction form
   9,036.39/12,470.04 = 5,261.79/x
3. Step 3: Cross multiply
   9,036.39x = 12,470.04 × 5,261.79
4. Step 4: Simplify right side
   9,036.39x = 65,614,731.77
5. Step 5: Solve for x
   x = 65,614,731.77/9,036.39
6. Step 6: Final answer
   x = 7,261.17