Finding the Fourth Proportional to 113,308, 170,623.12 and 83,934.16

Step by Step Solution

1. Step 1: Write the proportion equation
   113,308 : 170,623.12 = 83,934.16 : x
2. Step 2: Convert to fraction form
   113,308/170,623.12 = 83,934.16/x
3. Step 3: Cross multiply
   113,308x = 170,623.12 × 83,934.16
4. Step 4: Simplify right side
   113,308x = 14,321,108,253.78
5. Step 5: Solve for x
   x = 14,321,108,253.78/113,308
6. Step 6: Final answer
   x = 126,390.97