Finding the Fourth Proportional to 12,131,784.81, 18,192,617.94 and 4,938,435.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131,784.81 : 18,192,617.94 = 4,938,435.63 : x
2. Step 2: Convert to fraction form
   12,131,784.81/18,192,617.94 = 4,938,435.63/x
3. Step 3: Cross multiply
   12,131,784.81x = 18,192,617.94 × 4,938,435.63
4. Step 4: Simplify right side
   12,131,784.81x = 89,843,072,637,873.20
5. Step 5: Solve for x
   x = 89,843,072,637,873.20/12,131,784.81
6. Step 6: Final answer
   x = 7,405,593.99