Finding the Fourth Proportional to 142,077.72, 213,047.46 and 75,549.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,077.72 : 213,047.46 = 75,549.72 : x
2. Step 2: Convert to fraction form
   142,077.72/213,047.46 = 75,549.72/x
3. Step 3: Cross multiply
   142,077.72x = 213,047.46 × 75,549.72
4. Step 4: Simplify right side
   142,077.72x = 16,095,675,949.71
5. Step 5: Solve for x
   x = 16,095,675,949.71/142,077.72
6. Step 6: Final answer
   x = 113,287.83