Finding the Fourth Proportional to 51,328,685.99, 76,992,345.54 and 12,467,456.52

Step by Step Solution

1. Step 1: Write the proportion equation
   51,328,685.99 : 76,992,345.54 = 12,467,456.52 : x
2. Step 2: Convert to fraction form
   51,328,685.99/76,992,345.54 = 12,467,456.52/x
3. Step 3: Cross multiply
   51,328,685.99x = 76,992,345.54 × 12,467,456.52
4. Step 4: Simplify right side
   51,328,685.99x = 959,898,720,392,766
5. Step 5: Solve for x
   x = 959,898,720,392,766/51,328,685.99
6. Step 6: Final answer
   x = 18,701,018.78