Finding the Fourth Proportional to 114,957.31, 158,639.55 and 64,656.31

Step by Step Solution

1. Step 1: Write the proportion equation
   114,957.31 : 158,639.55 = 64,656.31 : x
2. Step 2: Convert to fraction form
   114,957.31/158,639.55 = 64,656.31/x
3. Step 3: Cross multiply
   114,957.31x = 158,639.55 × 64,656.31
4. Step 4: Simplify right side
   114,957.31x = 10,257,047,923.06
5. Step 5: Solve for x
   x = 10,257,047,923.06/114,957.31
6. Step 6: Final answer
   x = 89,224.84