Finding the Fourth Proportional to 80,970,196.46, 111,622,653.25 and 57,724,967.12

Step by Step Solution

1. Step 1: Write the proportion equation
   80,970,196.46 : 111,622,653.25 = 57,724,967.12 : x
2. Step 2: Convert to fraction form
   80,970,196.46/111,622,653.25 = 57,724,967.12/x
3. Step 3: Cross multiply
   80,970,196.46x = 111,622,653.25 × 57,724,967.12
4. Step 4: Simplify right side
   80,970,196.46x = 6,443,413,988,000,986
5. Step 5: Solve for x
   x = 6,443,413,988,000,986/80,970,196.46
6. Step 6: Final answer
   x = 79,577,601.02