Finding the Fourth Proportional to 12,949,069.70, 19,423,604.55 and 12,396,196.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,949,069.70 : 19,423,604.55 = 12,396,196.10 : x
2. Step 2: Convert to fraction form
   12,949,069.70/19,423,604.55 = 12,396,196.10/x
3. Step 3: Cross multiply
   12,949,069.70x = 19,423,604.55 × 12,396,196.10
4. Step 4: Simplify right side
   12,949,069.70x = 240,778,810,970,652.25
5. Step 5: Solve for x
   x = 240,778,810,970,652.25/12,949,069.70
6. Step 6: Final answer
   x = 18,594,294.15