Finding the Fourth Proportional to 12,253,288.10, 18,379,932.15 and 12,253,288.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,253,288.10 : 18,379,932.15 = 12,253,288.10 : x
2. Step 2: Convert to fraction form
   12,253,288.10/18,379,932.15 = 12,253,288.10/x
3. Step 3: Cross multiply
   12,253,288.10x = 18,379,932.15 × 12,253,288.10
4. Step 4: Simplify right side
   12,253,288.10x = 225,214,603,892,402.38
5. Step 5: Solve for x
   x = 225,214,603,892,402.38/12,253,288.10
6. Step 6: Final answer
   x = 18,379,932.15