Finding the Fourth Proportional to 12,922,784.52, 19,240,707.72 and 12,741,819.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,922,784.52 : 19,240,707.72 = 12,741,819.72 : x
2. Step 2: Convert to fraction form
   12,922,784.52/19,240,707.72 = 12,741,819.72/x
3. Step 3: Cross multiply
   12,922,784.52x = 19,240,707.72 × 12,741,819.72
4. Step 4: Simplify right side
   12,922,784.52x = 245,161,629,053,452.25
5. Step 5: Solve for x
   x = 245,161,629,053,452.25/12,922,784.52
6. Step 6: Final answer
   x = 18,971,269.60