Finding the Fourth Proportional to 22,157,470.10, 30,582,410.56 and 12,993,065.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,157,470.10 : 30,582,410.56 = 12,993,065.30 : x
2. Step 2: Convert to fraction form
   22,157,470.10/30,582,410.56 = 12,993,065.30/x
3. Step 3: Cross multiply
   22,157,470.10x = 30,582,410.56 × 12,993,065.30
4. Step 4: Simplify right side
   22,157,470.10x = 397,359,257,437,489.56
5. Step 5: Solve for x
   x = 397,359,257,437,489.56/22,157,470.10
6. Step 6: Final answer
   x = 17,933,421.81