Finding the Fourth Proportional to 64,572.79, 89,106.13 and 35,890.59

Step by Step Solution

1. Step 1: Write the proportion equation
   64,572.79 : 89,106.13 = 35,890.59 : x
2. Step 2: Convert to fraction form
   64,572.79/89,106.13 = 35,890.59/x
3. Step 3: Cross multiply
   64,572.79x = 89,106.13 × 35,890.59
4. Step 4: Simplify right side
   64,572.79x = 3,198,071,578.32
5. Step 5: Solve for x
   x = 3,198,071,578.32/64,572.79
6. Step 6: Final answer
   x = 49,526.61