Finding the Fourth Proportional to 123,960.58, 170,869.30 and 113,663.46

Step by Step Solution

1. Step 1: Write the proportion equation
   123,960.58 : 170,869.30 = 113,663.46 : x
2. Step 2: Convert to fraction form
   123,960.58/170,869.30 = 113,663.46/x
3. Step 3: Cross multiply
   123,960.58x = 170,869.30 × 113,663.46
4. Step 4: Simplify right side
   123,960.58x = 19,421,595,845.78
5. Step 5: Solve for x
   x = 19,421,595,845.78/123,960.58
6. Step 6: Final answer
   x = 156,675.58