Finding the Fourth Proportional to 15,768.63, 23,647.16 and 5,236.74

Step by Step Solution

1. Step 1: Write the proportion equation
   15,768.63 : 23,647.16 = 5,236.74 : x
2. Step 2: Convert to fraction form
   15,768.63/23,647.16 = 5,236.74/x
3. Step 3: Cross multiply
   15,768.63x = 23,647.16 × 5,236.74
4. Step 4: Simplify right side
   15,768.63x = 123,834,002.47
5. Step 5: Solve for x
   x = 123,834,002.47/15,768.63
6. Step 6: Final answer
   x = 7,853.19