Finding the Fourth Proportional to 11,298.63, 16,945.23 and 5,372.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,298.63 : 16,945.23 = 5,372.91 : x
2. Step 2: Convert to fraction form
   11,298.63/16,945.23 = 5,372.91/x
3. Step 3: Cross multiply
   11,298.63x = 16,945.23 × 5,372.91
4. Step 4: Simplify right side
   11,298.63x = 91,045,195.72
5. Step 5: Solve for x
   x = 91,045,195.72/11,298.63
6. Step 6: Final answer
   x = 8,058.07