Finding the Fourth Proportional to 114,849.05, 172,308.60 and 58,728.58

Step by Step Solution

1. Step 1: Write the proportion equation
   114,849.05 : 172,308.60 = 58,728.58 : x
2. Step 2: Convert to fraction form
   114,849.05/172,308.60 = 58,728.58/x
3. Step 3: Cross multiply
   114,849.05x = 172,308.60 × 58,728.58
4. Step 4: Simplify right side
   114,849.05x = 10,119,438,969.02
5. Step 5: Solve for x
   x = 10,119,438,969.02/114,849.05
6. Step 6: Final answer
   x = 88,110.78