Finding the Fourth Proportional to 12,040,563.42, 18,063,602.91 and 5,218,280.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,040,563.42 : 18,063,602.91 = 5,218,280.91 : x
2. Step 2: Convert to fraction form
   12,040,563.42/18,063,602.91 = 5,218,280.91/x
3. Step 3: Cross multiply
   12,040,563.42x = 18,063,602.91 × 5,218,280.91
4. Step 4: Simplify right side
   12,040,563.42x = 94,260,954,231,073.45
5. Step 5: Solve for x
   x = 94,260,954,231,073.45/12,040,563.42
6. Step 6: Final answer
   x = 7,828,616.56