Finding the Fourth Proportional to 7,314.88, 10,091.72 and 4,169.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,314.88 : 10,091.72 = 4,169.40 : x
2. Step 2: Convert to fraction form
   7,314.88/10,091.72 = 4,169.40/x
3. Step 3: Cross multiply
   7,314.88x = 10,091.72 × 4,169.40
4. Step 4: Simplify right side
   7,314.88x = 42,076,417.37
5. Step 5: Solve for x
   x = 42,076,417.37/7,314.88
6. Step 6: Final answer
   x = 5,752.17