Finding the Fourth Proportional to 64,800.61, 89,426.73 and 37,940.60

Step by Step Solution

1. Step 1: Write the proportion equation
   64,800.61 : 89,426.73 = 37,940.60 : x
2. Step 2: Convert to fraction form
   64,800.61/89,426.73 = 37,940.60/x
3. Step 3: Cross multiply
   64,800.61x = 89,426.73 × 37,940.60
4. Step 4: Simplify right side
   64,800.61x = 3,392,904,158.08
5. Step 5: Solve for x
   x = 3,392,904,158.08/64,800.61
6. Step 6: Final answer
   x = 52,359.14