Finding the Fourth Proportional to 114,538.50, 158,063.22 and 64,237.50

Step by Step Solution

1. Step 1: Write the proportion equation
   114,538.50 : 158,063.22 = 64,237.50 : x
2. Step 2: Convert to fraction form
   114,538.50/158,063.22 = 64,237.50/x
3. Step 3: Cross multiply
   114,538.50x = 158,063.22 × 64,237.50
4. Step 4: Simplify right side
   114,538.50x = 10,153,586,094.75
5. Step 5: Solve for x
   x = 10,153,586,094.75/114,538.50
6. Step 6: Final answer
   x = 88,647.80