Finding the Fourth Proportional to 123,859.32, 170,927.82 and 70,142.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,859.32 : 170,927.82 = 70,142.88 : x
2. Step 2: Convert to fraction form
   123,859.32/170,927.82 = 70,142.88/x
3. Step 3: Cross multiply
   123,859.32x = 170,927.82 × 70,142.88
4. Step 4: Simplify right side
   123,859.32x = 11,989,369,566.92
5. Step 5: Solve for x
   x = 11,989,369,566.92/123,859.32
6. Step 6: Final answer
   x = 96,798.28