Finding the Fourth Proportional to 120,273,164.28, 165,976,960.50 and 65,269,020.96

Step by Step Solution

1. Step 1: Write the proportion equation
   120,273,164.28 : 165,976,960.50 = 65,269,020.96 : x
2. Step 2: Convert to fraction form
   120,273,164.28/165,976,960.50 = 65,269,020.96/x
3. Step 3: Cross multiply
   120,273,164.28x = 165,976,960.50 × 65,269,020.96
4. Step 4: Simplify right side
   120,273,164.28x = 10,833,153,713,751,592
5. Step 5: Solve for x
   x = 10,833,153,713,751,592/120,273,164.28
6. Step 6: Final answer
   x = 90,071,245.56