Finding the Fourth Proportional to 64,743.79, 89,346.42 and 37,891.42

Step by Step Solution

1. Step 1: Write the proportion equation
   64,743.79 : 89,346.42 = 37,891.42 : x
2. Step 2: Convert to fraction form
   64,743.79/89,346.42 = 37,891.42/x
3. Step 3: Cross multiply
   64,743.79x = 89,346.42 × 37,891.42
4. Step 4: Simplify right side
   64,743.79x = 3,385,462,725.72
5. Step 5: Solve for x
   x = 3,385,462,725.72/64,743.79
6. Step 6: Final answer
   x = 52,290.15