Finding the Fourth Proportional to 116,978.72, 175,537.20 and 43,158.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,978.72 : 175,537.20 = 43,158.56 : x
2. Step 2: Convert to fraction form
   116,978.72/175,537.20 = 43,158.56/x
3. Step 3: Cross multiply
   116,978.72x = 175,537.20 × 43,158.56
4. Step 4: Simplify right side
   116,978.72x = 7,575,932,778.43
5. Step 5: Solve for x
   x = 7,575,932,778.43/116,978.72
6. Step 6: Final answer
   x = 64,763.34