Finding the Fourth Proportional to 9,400,353,233.72, 12,972,078,465.45 and 5,170,996,952.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,400,353,233.72 : 12,972,078,465.45 = 5,170,996,952.24 : x
2. Step 2: Convert to fraction form
   9,400,353,233.72/12,972,078,465.45 = 5,170,996,952.24/x
3. Step 3: Cross multiply
   9,400,353,233.72x = 12,972,078,465.45 × 5,170,996,952.24
4. Step 4: Simplify right side
   9,400,353,233.72x = 67,078,578,209,060,085,760
5. Step 5: Solve for x
   x = 67,078,578,209,060,085,760/9,400,353,233.72
6. Step 6: Final answer
   x = 7,135,750,810.77