Finding the Fourth Proportional to 64,839.92, 89,501.22 and 37,990.98

Step by Step Solution

1. Step 1: Write the proportion equation
   64,839.92 : 89,501.22 = 37,990.98 : x
2. Step 2: Convert to fraction form
   64,839.92/89,501.22 = 37,990.98/x
3. Step 3: Cross multiply
   64,839.92x = 89,501.22 × 37,990.98
4. Step 4: Simplify right side
   64,839.92x = 3,400,239,059.00
5. Step 5: Solve for x
   x = 3,400,239,059.00/64,839.92
6. Step 6: Final answer
   x = 52,440.52