Finding the Fourth Proportional to 28,141.05, 42,174.37 and 14,786.76

Step by Step Solution

1. Step 1: Write the proportion equation
   28,141.05 : 42,174.37 = 14,786.76 : x
2. Step 2: Convert to fraction form
   28,141.05/42,174.37 = 14,786.76/x
3. Step 3: Cross multiply
   28,141.05x = 42,174.37 × 14,786.76
4. Step 4: Simplify right side
   28,141.05x = 623,622,287.34
5. Step 5: Solve for x
   x = 623,622,287.34/28,141.05
6. Step 6: Final answer
   x = 22,160.59