Finding the Fourth Proportional to 12,928,729.96, 17,843,262.42 and 7,423,827.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,928,729.96 : 17,843,262.42 = 7,423,827.40 : x
2. Step 2: Convert to fraction form
   12,928,729.96/17,843,262.42 = 7,423,827.40/x
3. Step 3: Cross multiply
   12,928,729.96x = 17,843,262.42 × 7,423,827.40
4. Step 4: Simplify right side
   12,928,729.96x = 132,465,300,458,986.33
5. Step 5: Solve for x
   x = 132,465,300,458,986.33/12,928,729.96
6. Step 6: Final answer
   x = 10,245,809.21