Finding the Fourth Proportional to 123,838.42, 170,899.32 and 70,123.27

Step by Step Solution

1. Step 1: Write the proportion equation
   123,838.42 : 170,899.32 = 70,123.27 : x
2. Step 2: Convert to fraction form
   123,838.42/170,899.32 = 70,123.27/x
3. Step 3: Cross multiply
   123,838.42x = 170,899.32 × 70,123.27
4. Step 4: Simplify right side
   123,838.42x = 11,984,019,159.18
5. Step 5: Solve for x
   x = 11,984,019,159.18/123,838.42
6. Step 6: Final answer
   x = 96,771.42