Finding the Fourth Proportional to 64,795.03, 89,386.57 and 37,920.89

Step by Step Solution

1. Step 1: Write the proportion equation
   64,795.03 : 89,386.57 = 37,920.89 : x
2. Step 2: Convert to fraction form
   64,795.03/89,386.57 = 37,920.89/x
3. Step 3: Cross multiply
   64,795.03x = 89,386.57 × 37,920.89
4. Step 4: Simplify right side
   64,795.03x = 3,389,618,288.45
5. Step 5: Solve for x
   x = 3,389,618,288.45/64,795.03
6. Step 6: Final answer
   x = 52,312.94