Finding the Fourth Proportional to 120,077,590.11, 165,707,216.01 and 65,073,446.61

Step by Step Solution

1. Step 1: Write the proportion equation
   120,077,590.11 : 165,707,216.01 = 65,073,446.61 : x
2. Step 2: Convert to fraction form
   120,077,590.11/165,707,216.01 = 65,073,446.61/x
3. Step 3: Cross multiply
   120,077,590.11x = 165,707,216.01 × 65,073,446.61
4. Step 4: Simplify right side
   120,077,590.11x = 10,783,139,673,918,472
5. Step 5: Solve for x
   x = 10,783,139,673,918,472/120,077,590.11
6. Step 6: Final answer
   x = 89,801,433.09