Finding the Fourth Proportional to 64,580.81, 89,104.79 and 37,719.59

Step by Step Solution

1. Step 1: Write the proportion equation
   64,580.81 : 89,104.79 = 37,719.59 : x
2. Step 2: Convert to fraction form
   64,580.81/89,104.79 = 37,719.59/x
3. Step 3: Cross multiply
   64,580.81x = 89,104.79 × 37,719.59
4. Step 4: Simplify right side
   64,580.81x = 3,360,995,794.61
5. Step 5: Solve for x
   x = 3,360,995,794.61/64,580.81
6. Step 6: Final answer
   x = 52,043.26