Finding the Fourth Proportional to 10,357.52, 14,293.40 and 5,641.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,357.52 : 14,293.40 = 5,641.70 : x
2. Step 2: Convert to fraction form
   10,357.52/14,293.40 = 5,641.70/x
3. Step 3: Cross multiply
   10,357.52x = 14,293.40 × 5,641.70
4. Step 4: Simplify right side
   10,357.52x = 80,638,975.10
5. Step 5: Solve for x
   x = 80,638,975.10/10,357.52
6. Step 6: Final answer
   x = 7,785.55