Finding the Fourth Proportional to 114,978.42, 172,496.37 and 113,071.32

Step by Step Solution

1. Step 1: Write the proportion equation
   114,978.42 : 172,496.37 = 113,071.32 : x
2. Step 2: Convert to fraction form
   114,978.42/172,496.37 = 113,071.32/x
3. Step 3: Cross multiply
   114,978.42x = 172,496.37 × 113,071.32
4. Step 4: Simplify right side
   114,978.42x = 19,504,391,685.75
5. Step 5: Solve for x
   x = 19,504,391,685.75/114,978.42
6. Step 6: Final answer
   x = 169,635.25