Finding the Fourth Proportional to 52,150.51, 71,940.58 and 30,936.61

Step by Step Solution

1. Step 1: Write the proportion equation
   52,150.51 : 71,940.58 = 30,936.61 : x
2. Step 2: Convert to fraction form
   52,150.51/71,940.58 = 30,936.61/x
3. Step 3: Cross multiply
   52,150.51x = 71,940.58 × 30,936.61
4. Step 4: Simplify right side
   52,150.51x = 2,225,597,666.63
5. Step 5: Solve for x
   x = 2,225,597,666.63/52,150.51
6. Step 6: Final answer
   x = 42,676.43