Finding the Fourth Proportional to 10,091.04, 15,115.72 and 5,918.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.04 : 15,115.72 = 5,918.49 : x
2. Step 2: Convert to fraction form
   10,091.04/15,115.72 = 5,918.49/x
3. Step 3: Cross multiply
   10,091.04x = 15,115.72 × 5,918.49
4. Step 4: Simplify right side
   10,091.04x = 89,462,237.66
5. Step 5: Solve for x
   x = 89,462,237.66/10,091.04
6. Step 6: Final answer
   x = 8,865.51