Finding the Fourth Proportional to 64,635.47, 89,209.72 and 41,942.60

Step by Step Solution

1. Step 1: Write the proportion equation
   64,635.47 : 89,209.72 = 41,942.60 : x
2. Step 2: Convert to fraction form
   64,635.47/89,209.72 = 41,942.60/x
3. Step 3: Cross multiply
   64,635.47x = 89,209.72 × 41,942.60
4. Step 4: Simplify right side
   64,635.47x = 3,741,686,946.31
5. Step 5: Solve for x
   x = 3,741,686,946.31/64,635.47
6. Step 6: Final answer
   x = 57,889.07