Finding the Fourth Proportional to 142,527.60, 213,662.88 and 76,014.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,527.60 : 213,662.88 = 76,014.72 : x
2. Step 2: Convert to fraction form
   142,527.60/213,662.88 = 76,014.72/x
3. Step 3: Cross multiply
   142,527.60x = 213,662.88 × 76,014.72
4. Step 4: Simplify right side
   142,527.60x = 16,241,523,997.59
5. Step 5: Solve for x
   x = 16,241,523,997.59/142,527.60
6. Step 6: Final answer
   x = 113,953.54