Finding the Fourth Proportional to 40,987.60, 61,448.24 and 17,279.82

Step by Step Solution

1. Step 1: Write the proportion equation
   40,987.60 : 61,448.24 = 17,279.82 : x
2. Step 2: Convert to fraction form
   40,987.60/61,448.24 = 17,279.82/x
3. Step 3: Cross multiply
   40,987.60x = 61,448.24 × 17,279.82
4. Step 4: Simplify right side
   40,987.60x = 1,061,814,569.72
5. Step 5: Solve for x
   x = 1,061,814,569.72/40,987.60
6. Step 6: Final answer
   x = 25,905.75