Finding the Fourth Proportional to 114,885.81, 158,540.90 and 64,584.81

Step by Step Solution

1. Step 1: Write the proportion equation
   114,885.81 : 158,540.90 = 64,584.81 : x
2. Step 2: Convert to fraction form
   114,885.81/158,540.90 = 64,584.81/x
3. Step 3: Cross multiply
   114,885.81x = 158,540.90 × 64,584.81
4. Step 4: Simplify right side
   114,885.81x = 10,239,333,580.80
5. Step 5: Solve for x
   x = 10,239,333,580.80/114,885.81
6. Step 6: Final answer
   x = 89,126.18