Finding the Fourth Proportional to 17,087,804.50, 25,635,906.60 and 5,120,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,087,804.50 : 25,635,906.60 = 5,120,540.50 : x
2. Step 2: Convert to fraction form
   17,087,804.50/25,635,906.60 = 5,120,540.50/x
3. Step 3: Cross multiply
   17,087,804.50x = 25,635,906.60 × 5,120,540.50
4. Step 4: Simplify right side
   17,087,804.50x = 131,269,697,999,517.31
5. Step 5: Solve for x
   x = 131,269,697,999,517.31/17,087,804.50
6. Step 6: Final answer
   x = 7,682,069.28