Finding the Fourth Proportional to 113,988.12, 170,931.91 and 60,667.23

Step by Step Solution

1. Step 1: Write the proportion equation
   113,988.12 : 170,931.91 = 60,667.23 : x
2. Step 2: Convert to fraction form
   113,988.12/170,931.91 = 60,667.23/x
3. Step 3: Cross multiply
   113,988.12x = 170,931.91 × 60,667.23
4. Step 4: Simplify right side
   113,988.12x = 10,369,965,498.31
5. Step 5: Solve for x
   x = 10,369,965,498.31/113,988.12
6. Step 6: Final answer
   x = 90,974.09