Finding the Fourth Proportional to 17,158,456.34, 23,678,578.16 and 9,317,900.05

Step by Step Solution

1. Step 1: Write the proportion equation
   17,158,456.34 : 23,678,578.16 = 9,317,900.05 : x
2. Step 2: Convert to fraction form
   17,158,456.34/23,678,578.16 = 9,317,900.05/x
3. Step 3: Cross multiply
   17,158,456.34x = 23,678,578.16 × 9,317,900.05
4. Step 4: Simplify right side
   17,158,456.34x = 220,634,624,550,149.09
5. Step 5: Solve for x
   x = 220,634,624,550,149.09/17,158,456.34
6. Step 6: Final answer
   x = 12,858,652.33