Finding the Fourth Proportional to 11,477.58, 17,196.93 and 9,144.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,477.58 : 17,196.93 = 9,144.78 : x
2. Step 2: Convert to fraction form
   11,477.58/17,196.93 = 9,144.78/x
3. Step 3: Cross multiply
   11,477.58x = 17,196.93 × 9,144.78
4. Step 4: Simplify right side
   11,477.58x = 157,262,141.53
5. Step 5: Solve for x
   x = 157,262,141.53/11,477.58
6. Step 6: Final answer
   x = 13,701.68