Finding the Fourth Proportional to 1,438,939,158.04, 2,158,614,631.72 and 443,044,451.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,939,158.04 : 2,158,614,631.72 = 443,044,451.25 : x
2. Step 2: Convert to fraction form
   1,438,939,158.04/2,158,614,631.72 = 443,044,451.25/x
3. Step 3: Cross multiply
   1,438,939,158.04x = 2,158,614,631.72 × 443,044,451.25
4. Step 4: Simplify right side
   1,438,939,158.04x = 956,362,234,970,608,128
5. Step 5: Solve for x
   x = 956,362,234,970,608,128/1,438,939,158.04
6. Step 6: Final answer
   x = 664,630,071.14