Finding the Fourth Proportional to 177,687.78, 245,185.50 and 114,111.72

Step by Step Solution

1. Step 1: Write the proportion equation
   177,687.78 : 245,185.50 = 114,111.72 : x
2. Step 2: Convert to fraction form
   177,687.78/245,185.50 = 114,111.72/x
3. Step 3: Cross multiply
   177,687.78x = 245,185.50 × 114,111.72
4. Step 4: Simplify right side
   177,687.78x = 27,978,539,124.06
5. Step 5: Solve for x
   x = 27,978,539,124.06/177,687.78
6. Step 6: Final answer
   x = 157,458.99