Finding the Fourth Proportional to 9,936.56, 13,712.79 and 5,460.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,936.56 : 13,712.79 = 5,460.72 : x
2. Step 2: Convert to fraction form
   9,936.56/13,712.79 = 5,460.72/x
3. Step 3: Cross multiply
   9,936.56x = 13,712.79 × 5,460.72
4. Step 4: Simplify right side
   9,936.56x = 74,881,675.66
5. Step 5: Solve for x
   x = 74,881,675.66/9,936.56
6. Step 6: Final answer
   x = 7,535.98