Finding the Fourth Proportional to 47,140, 65,054.72 and 25,920.80

Step by Step Solution

1. Step 1: Write the proportion equation
   47,140 : 65,054.72 = 25,920.80 : x
2. Step 2: Convert to fraction form
   47,140/65,054.72 = 25,920.80/x
3. Step 3: Cross multiply
   47,140x = 65,054.72 × 25,920.80
4. Step 4: Simplify right side
   47,140x = 1,686,270,386.18
5. Step 5: Solve for x
   x = 1,686,270,386.18/47,140
6. Step 6: Final answer
   x = 35,771.54