Finding the Fourth Proportional to 663,764,103.10, 993,732,967.05 and 663,764,103.10

Step by Step Solution

1. Step 1: Write the proportion equation
   663,764,103.10 : 993,732,967.05 = 663,764,103.10 : x
2. Step 2: Convert to fraction form
   663,764,103.10/993,732,967.05 = 663,764,103.10/x
3. Step 3: Cross multiply
   663,764,103.10x = 993,732,967.05 × 663,764,103.10
4. Step 4: Simplify right side
   663,764,103.10x = 659,604,271,594,845,056
5. Step 5: Solve for x
   x = 659,604,271,594,845,056/663,764,103.10
6. Step 6: Final answer
   x = 993,732,967.05