Finding the Fourth Proportional to 13,361.47, 20,026.71 and 5,036.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,361.47 : 20,026.71 = 5,036.15 : x
2. Step 2: Convert to fraction form
   13,361.47/20,026.71 = 5,036.15/x
3. Step 3: Cross multiply
   13,361.47x = 20,026.71 × 5,036.15
4. Step 4: Simplify right side
   13,361.47x = 100,857,565.63
5. Step 5: Solve for x
   x = 100,857,565.63/13,361.47
6. Step 6: Final answer
   x = 7,548.39