Finding the Fourth Proportional to 37,086.37, 51,129.63 and 30,689.39

Step by Step Solution

1. Step 1: Write the proportion equation
   37,086.37 : 51,129.63 = 30,689.39 : x
2. Step 2: Convert to fraction form
   37,086.37/51,129.63 = 30,689.39/x
3. Step 3: Cross multiply
   37,086.37x = 51,129.63 × 30,689.39
4. Step 4: Simplify right side
   37,086.37x = 1,569,137,283.45
5. Step 5: Solve for x
   x = 1,569,137,283.45/37,086.37
6. Step 6: Final answer
   x = 42,310.35