Finding the Fourth Proportional to 9,936.21, 13,710.48 and 5,460.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,936.21 : 13,710.48 = 5,460.15 : x
2. Step 2: Convert to fraction form
   9,936.21/13,710.48 = 5,460.15/x
3. Step 3: Cross multiply
   9,936.21x = 13,710.48 × 5,460.15
4. Step 4: Simplify right side
   9,936.21x = 74,861,277.37
5. Step 5: Solve for x
   x = 74,861,277.37/9,936.21
6. Step 6: Final answer
   x = 7,534.19