Finding the Fourth Proportional to 76,914.72, 106,142.40 and 43,380.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,914.72 : 106,142.40 = 43,380.72 : x
2. Step 2: Convert to fraction form
   76,914.72/106,142.40 = 43,380.72/x
3. Step 3: Cross multiply
   76,914.72x = 106,142.40 × 43,380.72
4. Step 4: Simplify right side
   76,914.72x = 4,604,533,734.53
5. Step 5: Solve for x
   x = 4,604,533,734.53/76,914.72
6. Step 6: Final answer
   x = 59,865.44