Finding the Fourth Proportional to 22,050.71, 30,429.72 and 11,978.93

Step by Step Solution

1. Step 1: Write the proportion equation
   22,050.71 : 30,429.72 = 11,978.93 : x
2. Step 2: Convert to fraction form
   22,050.71/30,429.72 = 11,978.93/x
3. Step 3: Cross multiply
   22,050.71x = 30,429.72 × 11,978.93
4. Step 4: Simplify right side
   22,050.71x = 364,515,561.87
5. Step 5: Solve for x
   x = 364,515,561.87/22,050.71
6. Step 6: Final answer
   x = 16,530.79