Finding the Fourth Proportional to 20,675.25, 30,816.72 and 20,051.96

Step by Step Solution

1. Step 1: Write the proportion equation
   20,675.25 : 30,816.72 = 20,051.96 : x
2. Step 2: Convert to fraction form
   20,675.25/30,816.72 = 20,051.96/x
3. Step 3: Cross multiply
   20,675.25x = 30,816.72 × 20,051.96
4. Step 4: Simplify right side
   20,675.25x = 617,935,482.69
5. Step 5: Solve for x
   x = 617,935,482.69/20,675.25
6. Step 6: Final answer
   x = 29,887.69