Finding the Fourth Proportional to 64,991.03, 89,673.62 and 37,772.06

Step by Step Solution

1. Step 1: Write the proportion equation
   64,991.03 : 89,673.62 = 37,772.06 : x
2. Step 2: Convert to fraction form
   64,991.03/89,673.62 = 37,772.06/x
3. Step 3: Cross multiply
   64,991.03x = 89,673.62 × 37,772.06
4. Step 4: Simplify right side
   64,991.03x = 3,387,156,717.83
5. Step 5: Solve for x
   x = 3,387,156,717.83/64,991.03
6. Step 6: Final answer
   x = 52,117.30