Finding the Fourth Proportional to 64,785.02, 89,372.78 and 37,911.05

Step by Step Solution

1. Step 1: Write the proportion equation
   64,785.02 : 89,372.78 = 37,911.05 : x
2. Step 2: Convert to fraction form
   64,785.02/89,372.78 = 37,911.05/x
3. Step 3: Cross multiply
   64,785.02x = 89,372.78 × 37,911.05
4. Step 4: Simplify right side
   64,785.02x = 3,388,215,931.22
5. Step 5: Solve for x
   x = 3,388,215,931.22/64,785.02
6. Step 6: Final answer
   x = 52,299.37