Finding the Fourth Proportional to 64,785.72, 89,373.73 and 37,911.59

Step by Step Solution

1. Step 1: Write the proportion equation
   64,785.72 : 89,373.73 = 37,911.59 : x
2. Step 2: Convert to fraction form
   64,785.72/89,373.73 = 37,911.59/x
3. Step 3: Cross multiply
   64,785.72x = 89,373.73 × 37,911.59
4. Step 4: Simplify right side
   64,785.72x = 3,388,300,575.85
5. Step 5: Solve for x
   x = 3,388,300,575.85/64,785.72
6. Step 6: Final answer
   x = 52,300.11