Finding the Fourth Proportional to 699,334,167.72, 1,048,484,105.31 and 422,923,931.19

Step by Step Solution

1. Step 1: Write the proportion equation
   699,334,167.72 : 1,048,484,105.31 = 422,923,931.19 : x
2. Step 2: Convert to fraction form
   699,334,167.72/1,048,484,105.31 = 422,923,931.19/x
3. Step 3: Cross multiply
   699,334,167.72x = 1,048,484,105.31 × 422,923,931.19
4. Step 4: Simplify right side
   699,334,167.72x = 443,429,019,607,935,104
5. Step 5: Solve for x
   x = 443,429,019,607,935,104/699,334,167.72
6. Step 6: Final answer
   x = 634,073,151.40