Finding the Fourth Proportional to 9,945.23, 14,920.16 and 3,705.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.23 : 14,920.16 = 3,705.26 : x
2. Step 2: Convert to fraction form
   9,945.23/14,920.16 = 3,705.26/x
3. Step 3: Cross multiply
   9,945.23x = 14,920.16 × 3,705.26
4. Step 4: Simplify right side
   9,945.23x = 55,282,978.91
5. Step 5: Solve for x
   x = 55,282,978.91/9,945.23
6. Step 6: Final answer
   x = 5,558.75