Finding the Fourth Proportional to 316,978,234.10, 444,374,189.50 and 316,978,234.10

Step by Step Solution

1. Step 1: Write the proportion equation
   316,978,234.10 : 444,374,189.50 = 316,978,234.10 : x
2. Step 2: Convert to fraction form
   316,978,234.10/444,374,189.50 = 316,978,234.10/x
3. Step 3: Cross multiply
   316,978,234.10x = 444,374,189.50 × 316,978,234.10
4. Step 4: Simplify right side
   316,978,234.10x = 140,856,945,867,328,768
5. Step 5: Solve for x
   x = 140,856,945,867,328,768/316,978,234.10
6. Step 6: Final answer
   x = 444,374,189.50