Finding the Fourth Proportional to 22,157,469.10, 30,582,409.18 and 12,993,064.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,157,469.10 : 30,582,409.18 = 12,993,064.30 : x
2. Step 2: Convert to fraction form
   22,157,469.10/30,582,409.18 = 12,993,064.30/x
3. Step 3: Cross multiply
   22,157,469.10x = 30,582,409.18 × 12,993,064.30
4. Step 4: Simplify right side
   22,157,469.10x = 397,359,208,924,650.31
5. Step 5: Solve for x
   x = 397,359,208,924,650.31/22,157,469.10
6. Step 6: Final answer
   x = 17,933,420.43