Finding the Fourth Proportional to 64,990.09, 89,682.04 and 37,763.76

Step by Step Solution

1. Step 1: Write the proportion equation
   64,990.09 : 89,682.04 = 37,763.76 : x
2. Step 2: Convert to fraction form
   64,990.09/89,682.04 = 37,763.76/x
3. Step 3: Cross multiply
   64,990.09x = 89,682.04 × 37,763.76
4. Step 4: Simplify right side
   64,990.09x = 3,386,730,940.46
5. Step 5: Solve for x
   x = 3,386,730,940.46/64,990.09
6. Step 6: Final answer
   x = 52,111.50