Finding the Fourth Proportional to 18,111,168.78, 24,991,140.15 and 12,243,565.98

Step by Step Solution

1. Step 1: Write the proportion equation
   18,111,168.78 : 24,991,140.15 = 12,243,565.98 : x
2. Step 2: Convert to fraction form
   18,111,168.78/24,991,140.15 = 12,243,565.98/x
3. Step 3: Cross multiply
   18,111,168.78x = 24,991,140.15 × 12,243,565.98
4. Step 4: Simplify right side
   18,111,168.78x = 305,980,673,341,952.06
5. Step 5: Solve for x
   x = 305,980,673,341,952.06/18,111,168.78
6. Step 6: Final answer
   x = 16,894,584.61