Finding the Fourth Proportional to 76,259.56, 114,387.72 and 20,855.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,259.56 : 114,387.72 = 20,855.56 : x
2. Step 2: Convert to fraction form
   76,259.56/114,387.72 = 20,855.56/x
3. Step 3: Cross multiply
   76,259.56x = 114,387.72 × 20,855.56
4. Step 4: Simplify right side
   76,259.56x = 2,385,619,957.72
5. Step 5: Solve for x
   x = 2,385,619,957.72/76,259.56
6. Step 6: Final answer
   x = 31,282.90