Finding the Fourth Proportional to 12,099,003.78, 18,156,887.55 and 4,811,716.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,099,003.78 : 18,156,887.55 = 4,811,716.74 : x
2. Step 2: Convert to fraction form
   12,099,003.78/18,156,887.55 = 4,811,716.74/x
3. Step 3: Cross multiply
   12,099,003.78x = 18,156,887.55 × 4,811,716.74
4. Step 4: Simplify right side
   12,099,003.78x = 87,365,799,770,632.59
5. Step 5: Solve for x
   x = 87,365,799,770,632.59/12,099,003.78
6. Step 6: Final answer
   x = 7,220,908.54