Finding the Fourth Proportional to 114,887.56, 158,543.31 and 64,586.56

Step by Step Solution

1. Step 1: Write the proportion equation
   114,887.56 : 158,543.31 = 64,586.56 : x
2. Step 2: Convert to fraction form
   114,887.56/158,543.31 = 64,586.56/x
3. Step 3: Cross multiply
   114,887.56x = 158,543.31 × 64,586.56
4. Step 4: Simplify right side
   114,887.56x = 10,239,767,003.91
5. Step 5: Solve for x
   x = 10,239,767,003.91/114,887.56
6. Step 6: Final answer
   x = 89,128.60