Finding the Fourth Proportional to 99,811,942.85, 137,544,273.06 and 76,317,100.27

Step by Step Solution

1. Step 1: Write the proportion equation
   99,811,942.85 : 137,544,273.06 = 76,317,100.27 : x
2. Step 2: Convert to fraction form
   99,811,942.85/137,544,273.06 = 76,317,100.27/x
3. Step 3: Cross multiply
   99,811,942.85x = 137,544,273.06 × 76,317,100.27
4. Step 4: Simplify right side
   99,811,942.85x = 10,496,980,078,684,280
5. Step 5: Solve for x
   x = 10,496,980,078,684,280/99,811,942.85
6. Step 6: Final answer
   x = 105,167,575.93