Finding the Fourth Proportional to 11,392.98, 17,091.54 and 5,155.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,392.98 : 17,091.54 = 5,155.94 : x
2. Step 2: Convert to fraction form
   11,392.98/17,091.54 = 5,155.94/x
3. Step 3: Cross multiply
   11,392.98x = 17,091.54 × 5,155.94
4. Step 4: Simplify right side
   11,392.98x = 88,122,869.29
5. Step 5: Solve for x
   x = 88,122,869.29/11,392.98
6. Step 6: Final answer
   x = 7,734.84