Finding the Fourth Proportional to 123,736.59, 170,668.28 and 113,560.42

Step by Step Solution

1. Step 1: Write the proportion equation
   123,736.59 : 170,668.28 = 113,560.42 : x
2. Step 2: Convert to fraction form
   123,736.59/170,668.28 = 113,560.42/x
3. Step 3: Cross multiply
   123,736.59x = 170,668.28 × 113,560.42
4. Step 4: Simplify right side
   123,736.59x = 19,381,160,563.00
5. Step 5: Solve for x
   x = 19,381,160,563.00/123,736.59
6. Step 6: Final answer
   x = 156,632.42