Finding the Fourth Proportional to 114,956.31, 158,638.17 and 64,655.31

Step by Step Solution

1. Step 1: Write the proportion equation
   114,956.31 : 158,638.17 = 64,655.31 : x
2. Step 2: Convert to fraction form
   114,956.31/158,638.17 = 64,655.31/x
3. Step 3: Cross multiply
   114,956.31x = 158,638.17 × 64,655.31
4. Step 4: Simplify right side
   114,956.31x = 10,256,800,059.18
5. Step 5: Solve for x
   x = 10,256,800,059.18/114,956.31
6. Step 6: Final answer
   x = 89,223.46