Finding the Fourth Proportional to 64,710.72, 89,300.61 and 36,416.43

Step by Step Solution

1. Step 1: Write the proportion equation
   64,710.72 : 89,300.61 = 36,416.43 : x
2. Step 2: Convert to fraction form
   64,710.72/89,300.61 = 36,416.43/x
3. Step 3: Cross multiply
   64,710.72x = 89,300.61 × 36,416.43
4. Step 4: Simplify right side
   64,710.72x = 3,252,009,413.02
5. Step 5: Solve for x
   x = 3,252,009,413.02/64,710.72
6. Step 6: Final answer
   x = 50,254.57