Finding the Fourth Proportional to 22,157,478.90, 30,582,422.73 and 12,993,074.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,157,478.90 : 30,582,422.73 = 12,993,074.10 : x
2. Step 2: Convert to fraction form
   22,157,478.90/30,582,422.73 = 12,993,074.10/x
3. Step 3: Cross multiply
   22,157,478.90x = 30,582,422.73 × 12,993,074.10
4. Step 4: Simplify right side
   22,157,478.90x = 397,359,684,688,414.31
5. Step 5: Solve for x
   x = 397,359,684,688,414.31/22,157,478.90
6. Step 6: Final answer
   x = 17,933,433.97