Finding the Fourth Proportional to 76,158.53, 105,096.20 and 42,168.45

Step by Step Solution

1. Step 1: Write the proportion equation
   76,158.53 : 105,096.20 = 42,168.45 : x
2. Step 2: Convert to fraction form
   76,158.53/105,096.20 = 42,168.45/x
3. Step 3: Cross multiply
   76,158.53x = 105,096.20 × 42,168.45
4. Step 4: Simplify right side
   76,158.53x = 4,431,744,275.36
5. Step 5: Solve for x
   x = 4,431,744,275.36/76,158.53
6. Step 6: Final answer
   x = 58,191.04