Finding the Fourth Proportional to 9,404,693,838.62, 12,978,479,615.73 and 5,175,605,727.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404,693,838.62 : 12,978,479,615.73 = 5,175,605,727.24 : x
2. Step 2: Convert to fraction form
   9,404,693,838.62/12,978,479,615.73 = 5,175,605,727.24/x
3. Step 3: Cross multiply
   9,404,693,838.62x = 12,978,479,615.73 × 5,175,605,727.24
4. Step 4: Simplify right side
   9,404,693,838.62x = 67,171,493,430,039,773,184
5. Step 5: Solve for x
   x = 67,171,493,430,039,773,184/9,404,693,838.62
6. Step 6: Final answer
   x = 7,142,337,069.42