Finding the Fourth Proportional to 114,943.56, 158,620.59 and 64,642.56

Step by Step Solution

1. Step 1: Write the proportion equation
   114,943.56 : 158,620.59 = 64,642.56 : x
2. Step 2: Convert to fraction form
   114,943.56/158,620.59 = 64,642.56/x
3. Step 3: Cross multiply
   114,943.56x = 158,620.59 × 64,642.56
4. Step 4: Simplify right side
   114,943.56x = 10,253,641,006.31
5. Step 5: Solve for x
   x = 10,253,641,006.31/114,943.56
6. Step 6: Final answer
   x = 89,205.88