Finding the Fourth Proportional to 80,984,013.68, 111,656,563.52 and 67,591,904.56

Step by Step Solution

1. Step 1: Write the proportion equation
   80,984,013.68 : 111,656,563.52 = 67,591,904.56 : x
2. Step 2: Convert to fraction form
   80,984,013.68/111,656,563.52 = 67,591,904.56/x
3. Step 3: Cross multiply
   80,984,013.68x = 111,656,563.52 × 67,591,904.56
4. Step 4: Simplify right side
   80,984,013.68x = 7,547,079,784,941,418
5. Step 5: Solve for x
   x = 7,547,079,784,941,418/80,984,013.68
6. Step 6: Final answer
   x = 93,192,217.11