Finding the Fourth Proportional to 64,784.90, 89,372.61 and 37,910.92

Step by Step Solution

1. Step 1: Write the proportion equation
   64,784.90 : 89,372.61 = 37,910.92 : x
2. Step 2: Convert to fraction form
   64,784.90/89,372.61 = 37,910.92/x
3. Step 3: Cross multiply
   64,784.90x = 89,372.61 × 37,910.92
4. Step 4: Simplify right side
   64,784.90x = 3,388,197,867.90
5. Step 5: Solve for x
   x = 3,388,197,867.90/64,784.90
6. Step 6: Final answer
   x = 52,299.19