Finding the Fourth Proportional to 9,953.94, 13,736.42 and 5,477.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,953.94 : 13,736.42 = 5,477.76 : x
2. Step 2: Convert to fraction form
   9,953.94/13,736.42 = 5,477.76/x
3. Step 3: Cross multiply
   9,953.94x = 13,736.42 × 5,477.76
4. Step 4: Simplify right side
   9,953.94x = 75,244,812.02
5. Step 5: Solve for x
   x = 75,244,812.02/9,953.94
6. Step 6: Final answer
   x = 7,559.30