Finding the Fourth Proportional to 114,536.72, 158,060.52 and 64,235.28

Step by Step Solution

1. Step 1: Write the proportion equation
   114,536.72 : 158,060.52 = 64,235.28 : x
2. Step 2: Convert to fraction form
   114,536.72/158,060.52 = 64,235.28/x
3. Step 3: Cross multiply
   114,536.72x = 158,060.52 × 64,235.28
4. Step 4: Simplify right side
   114,536.72x = 10,153,061,759.15
5. Step 5: Solve for x
   x = 10,153,061,759.15/114,536.72
6. Step 6: Final answer
   x = 88,644.60