Finding the Fourth Proportional to 64,542.58, 89,053.05 and 37,669.78

Step by Step Solution

1. Step 1: Write the proportion equation
   64,542.58 : 89,053.05 = 37,669.78 : x
2. Step 2: Convert to fraction form
   64,542.58/89,053.05 = 37,669.78/x
3. Step 3: Cross multiply
   64,542.58x = 89,053.05 × 37,669.78
4. Step 4: Simplify right side
   64,542.58x = 3,354,608,801.83
5. Step 5: Solve for x
   x = 3,354,608,801.83/64,542.58
6. Step 6: Final answer
   x = 51,975.13