Finding the Fourth Proportional to 42,666.12, 58,901.39 and 31,168.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,666.12 : 58,901.39 = 31,168.12 : x
2. Step 2: Convert to fraction form
   42,666.12/58,901.39 = 31,168.12/x
3. Step 3: Cross multiply
   42,666.12x = 58,901.39 × 31,168.12
4. Step 4: Simplify right side
   42,666.12x = 1,835,845,742.24
5. Step 5: Solve for x
   x = 1,835,845,742.24/42,666.12
6. Step 6: Final answer
   x = 43,028.18