Finding the Fourth Proportional to 10,443.59, 15,670.78 and 6,936.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.59 : 15,670.78 = 6,936.02 : x
2. Step 2: Convert to fraction form
   10,443.59/15,670.78 = 6,936.02/x
3. Step 3: Cross multiply
   10,443.59x = 15,670.78 × 6,936.02
4. Step 4: Simplify right side
   10,443.59x = 108,692,865.33
5. Step 5: Solve for x
   x = 108,692,865.33/10,443.59
6. Step 6: Final answer
   x = 10,407.61