Finding the Fourth Proportional to 12,557,827,693.28, 18,839,499,698.15 and 3,713,977,057.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,557,827,693.28 : 18,839,499,698.15 = 3,713,977,057.34 : x
2. Step 2: Convert to fraction form
   12,557,827,693.28/18,839,499,698.15 = 3,713,977,057.34/x
3. Step 3: Cross multiply
   12,557,827,693.28x = 18,839,499,698.15 × 3,713,977,057.34
4. Step 4: Simplify right side
   12,557,827,693.28x = 69,969,469,650,692,964,352
5. Step 5: Solve for x
   x = 69,969,469,650,692,964,352/12,557,827,693.28
6. Step 6: Final answer
   x = 5,571,781,311.20