Finding the Fourth Proportional to 13,036.37, 19,557.28 and 4,270.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,036.37 : 19,557.28 = 4,270.60 : x
2. Step 2: Convert to fraction form
   13,036.37/19,557.28 = 4,270.60/x
3. Step 3: Cross multiply
   13,036.37x = 19,557.28 × 4,270.60
4. Step 4: Simplify right side
   13,036.37x = 83,521,222.18
5. Step 5: Solve for x
   x = 83,521,222.18/13,036.37
6. Step 6: Final answer
   x = 6,406.79