Finding the Fourth Proportional to 64,856.18, 89,500.34 and 36,561.89

Step by Step Solution

1. Step 1: Write the proportion equation
   64,856.18 : 89,500.34 = 36,561.89 : x
2. Step 2: Convert to fraction form
   64,856.18/89,500.34 = 36,561.89/x
3. Step 3: Cross multiply
   64,856.18x = 89,500.34 × 36,561.89
4. Step 4: Simplify right side
   64,856.18x = 3,272,301,403.23
5. Step 5: Solve for x
   x = 3,272,301,403.23/64,856.18
6. Step 6: Final answer
   x = 50,454.74