Finding the Fourth Proportional to 22,157,568.69, 30,582,546.67 and 12,993,163.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,157,568.69 : 30,582,546.67 = 12,993,163.89 : x
2. Step 2: Convert to fraction form
   22,157,568.69/30,582,546.67 = 12,993,163.89/x
3. Step 3: Cross multiply
   22,157,568.69x = 30,582,546.67 × 12,993,163.89
4. Step 4: Simplify right side
   22,157,568.69x = 397,364,041,056,883.81
5. Step 5: Solve for x
   x = 397,364,041,056,883.81/22,157,568.69
6. Step 6: Final answer
   x = 17,933,557.90