Finding the Fourth Proportional to 199,091,380.98, 298,638,016.05 and 60,916,767.69

Step by Step Solution

1. Step 1: Write the proportion equation
   199,091,380.98 : 298,638,016.05 = 60,916,767.69 : x
2. Step 2: Convert to fraction form
   199,091,380.98/298,638,016.05 = 60,916,767.69/x
3. Step 3: Cross multiply
   199,091,380.98x = 298,638,016.05 × 60,916,767.69
4. Step 4: Simplify right side
   199,091,380.98x = 18,192,062,648,468,672
5. Step 5: Solve for x
   x = 18,192,062,648,468,672/199,091,380.98
6. Step 6: Final answer
   x = 91,375,440.56