Finding the Fourth Proportional to 113,689.40, 170,583.32 and 61,037.37

Step by Step Solution

1. Step 1: Write the proportion equation
   113,689.40 : 170,583.32 = 61,037.37 : x
2. Step 2: Convert to fraction form
   113,689.40/170,583.32 = 61,037.37/x
3. Step 3: Cross multiply
   113,689.40x = 170,583.32 × 61,037.37
4. Step 4: Simplify right side
   113,689.40x = 10,411,957,507.69
5. Step 5: Solve for x
   x = 10,411,957,507.69/113,689.40
6. Step 6: Final answer
   x = 91,582.48