Finding the Fourth Proportional to 699,334,168.72, 1,048,484,106.81 and 422,923,932.19

Step by Step Solution

1. Step 1: Write the proportion equation
   699,334,168.72 : 1,048,484,106.81 = 422,923,932.19 : x
2. Step 2: Convert to fraction form
   699,334,168.72/1,048,484,106.81 = 422,923,932.19/x
3. Step 3: Cross multiply
   699,334,168.72x = 1,048,484,106.81 × 422,923,932.19
4. Step 4: Simplify right side
   699,334,168.72x = 443,429,021,290,805,120
5. Step 5: Solve for x
   x = 443,429,021,290,805,120/699,334,168.72
6. Step 6: Final answer
   x = 634,073,152.90