Finding the Fourth Proportional to 13,039.02, 19,561.37 and 4,273.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,039.02 : 19,561.37 = 4,273.61 : x
2. Step 2: Convert to fraction form
   13,039.02/19,561.37 = 4,273.61/x
3. Step 3: Cross multiply
   13,039.02x = 19,561.37 × 4,273.61
4. Step 4: Simplify right side
   13,039.02x = 83,597,547.27
5. Step 5: Solve for x
   x = 83,597,547.27/13,039.02
6. Step 6: Final answer
   x = 6,411.34