Finding the Fourth Proportional to 17,039,478.24, 25,540,284.71 and 12,982,590.47

Step by Step Solution

1. Step 1: Write the proportion equation
   17,039,478.24 : 25,540,284.71 = 12,982,590.47 : x
2. Step 2: Convert to fraction form
   17,039,478.24/25,540,284.71 = 12,982,590.47/x
3. Step 3: Cross multiply
   17,039,478.24x = 25,540,284.71 × 12,982,590.47
4. Step 4: Simplify right side
   17,039,478.24x = 331,579,056,684,518.31
5. Step 5: Solve for x
   x = 331,579,056,684,518.31/17,039,478.24
6. Step 6: Final answer
   x = 19,459,460.67