Finding the Fourth Proportional to 9,809.99, 13,538.06 and 5,334.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,809.99 : 13,538.06 = 5,334.05 : x
2. Step 2: Convert to fraction form
   9,809.99/13,538.06 = 5,334.05/x
3. Step 3: Cross multiply
   9,809.99x = 13,538.06 × 5,334.05
4. Step 4: Simplify right side
   9,809.99x = 72,212,688.94
5. Step 5: Solve for x
   x = 72,212,688.94/9,809.99
6. Step 6: Final answer
   x = 7,361.14