Finding the Fourth Proportional to 189,076.64, 283,635.72 and 76,740.53

Step by Step Solution

1. Step 1: Write the proportion equation
   189,076.64 : 283,635.72 = 76,740.53 : x
2. Step 2: Convert to fraction form
   189,076.64/283,635.72 = 76,740.53/x
3. Step 3: Cross multiply
   189,076.64x = 283,635.72 × 76,740.53
4. Step 4: Simplify right side
   189,076.64x = 21,766,354,061.55
5. Step 5: Solve for x
   x = 21,766,354,061.55/189,076.64
6. Step 6: Final answer
   x = 115,119.22