Finding the Fourth Proportional to 9,954.78, 13,736.79 and 5,477.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,954.78 : 13,736.79 = 5,477.82 : x
2. Step 2: Convert to fraction form
   9,954.78/13,736.79 = 5,477.82/x
3. Step 3: Cross multiply
   9,954.78x = 13,736.79 × 5,477.82
4. Step 4: Simplify right side
   9,954.78x = 75,247,663.00
5. Step 5: Solve for x
   x = 75,247,663.00/9,954.78
6. Step 6: Final answer
   x = 7,558.95