Finding the Fourth Proportional to 12,928,674.69, 17,841,427.61 and 7,422,181.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,928,674.69 : 17,841,427.61 = 7,422,181.29 : x
2. Step 2: Convert to fraction form
   12,928,674.69/17,841,427.61 = 7,422,181.29/x
3. Step 3: Cross multiply
   12,928,674.69x = 17,841,427.61 × 7,422,181.29
4. Step 4: Simplify right side
   12,928,674.69x = 132,422,310,156,720.52
5. Step 5: Solve for x
   x = 132,422,310,156,720.52/12,928,674.69
6. Step 6: Final answer
   x = 10,242,527.82