Finding the Fourth Proportional to 8,169,870.78, 12,249,130.89 and 3,618,439.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,169,870.78 : 12,249,130.89 = 3,618,439.47 : x
2. Step 2: Convert to fraction form
   8,169,870.78/12,249,130.89 = 3,618,439.47/x
3. Step 3: Cross multiply
   8,169,870.78x = 12,249,130.89 × 3,618,439.47
4. Step 4: Simplify right side
   8,169,870.78x = 44,322,738,685,572.23
5. Step 5: Solve for x
   x = 44,322,738,685,572.23/8,169,870.78
6. Step 6: Final answer
   x = 5,425,145.62