Finding the Fourth Proportional to 36,690,111.60, 55,041,810.42 and 18,448,399.28

Step by Step Solution

1. Step 1: Write the proportion equation
   36,690,111.60 : 55,041,810.42 = 18,448,399.28 : x
2. Step 2: Convert to fraction form
   36,690,111.60/55,041,810.42 = 18,448,399.28/x
3. Step 3: Cross multiply
   36,690,111.60x = 55,041,810.42 × 18,448,399.28
4. Step 4: Simplify right side
   36,690,111.60x = 1,015,433,295,447,015.38
5. Step 5: Solve for x
   x = 1,015,433,295,447,015.38/36,690,111.60
6. Step 6: Final answer
   x = 27,675,939.13