Finding the Fourth Proportional to 144,642,900.57, 199,609,832.37 and 81,932,018.96

Step by Step Solution

1. Step 1: Write the proportion equation
   144,642,900.57 : 199,609,832.37 = 81,932,018.96 : x
2. Step 2: Convert to fraction form
   144,642,900.57/199,609,832.37 = 81,932,018.96/x
3. Step 3: Cross multiply
   144,642,900.57x = 199,609,832.37 × 81,932,018.96
4. Step 4: Simplify right side
   144,642,900.57x = 16,354,436,570,341,260
5. Step 5: Solve for x
   x = 16,354,436,570,341,260/144,642,900.57
6. Step 6: Final answer
   x = 113,067,675.68