Finding the Fourth Proportional to 64,872.72, 89,524.44 and 35,064.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,872.72 : 89,524.44 = 35,064.72 : x
2. Step 2: Convert to fraction form
   64,872.72/89,524.44 = 35,064.72/x
3. Step 3: Cross multiply
   64,872.72x = 89,524.44 × 35,064.72
4. Step 4: Simplify right side
   64,872.72x = 3,139,149,421.76
5. Step 5: Solve for x
   x = 3,139,149,421.76/64,872.72
6. Step 6: Final answer
   x = 48,389.36