Finding the Fourth Proportional to 16,485,939,512.46, 24,731,667,491.76 and 12,944,538,088.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,485,939,512.46 : 24,731,667,491.76 = 12,944,538,088.74 : x
2. Step 2: Convert to fraction form
   16,485,939,512.46/24,731,667,491.76 = 12,944,538,088.74/x
3. Step 3: Cross multiply
   16,485,939,512.46x = 24,731,667,491.76 × 12,944,538,088.74
4. Step 4: Simplify right side
   16,485,939,512.46x = 320,140,011,845,140,152,320
5. Step 5: Solve for x
   x = 320,140,011,845,140,152,320/16,485,939,512.46
6. Step 6: Final answer
   x = 19,418,972,852.79