Finding the Fourth Proportional to 114,947.37, 158,628.78 and 64,646.37

Step by Step Solution

1. Step 1: Write the proportion equation
   114,947.37 : 158,628.78 = 64,646.37 : x
2. Step 2: Convert to fraction form
   114,947.37/158,628.78 = 64,646.37/x
3. Step 3: Cross multiply
   114,947.37x = 158,628.78 × 64,646.37
4. Step 4: Simplify right side
   114,947.37x = 10,254,774,804.53
5. Step 5: Solve for x
   x = 10,254,774,804.53/114,947.37
6. Step 6: Final answer
   x = 89,212.78