Finding the Fourth Proportional to 70,089.12, 105,153.12 and 40,452.84

Step by Step Solution

1. Step 1: Write the proportion equation
   70,089.12 : 105,153.12 = 40,452.84 : x
2. Step 2: Convert to fraction form
   70,089.12/105,153.12 = 40,452.84/x
3. Step 3: Cross multiply
   70,089.12x = 105,153.12 × 40,452.84
4. Step 4: Simplify right side
   70,089.12x = 4,253,742,338.86
5. Step 5: Solve for x
   x = 4,253,742,338.86/70,089.12
6. Step 6: Final answer
   x = 60,690.48