Finding the Fourth Proportional to 9,978,737.86, 14,967,975.57 and 2,405,642.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978,737.86 : 14,967,975.57 = 2,405,642.86 : x
2. Step 2: Convert to fraction form
   9,978,737.86/14,967,975.57 = 2,405,642.86/x
3. Step 3: Cross multiply
   9,978,737.86x = 14,967,975.57 × 2,405,642.86
4. Step 4: Simplify right side
   9,978,737.86x = 36,007,603,558,624.93
5. Step 5: Solve for x
   x = 36,007,603,558,624.93/9,978,737.86
6. Step 6: Final answer
   x = 3,608,432.66