Finding the Fourth Proportional to 105,016.50, 157,597.71 and 42,687.06

Step by Step Solution

1. Step 1: Write the proportion equation
   105,016.50 : 157,597.71 = 42,687.06 : x
2. Step 2: Convert to fraction form
   105,016.50/157,597.71 = 42,687.06/x
3. Step 3: Cross multiply
   105,016.50x = 157,597.71 × 42,687.06
4. Step 4: Simplify right side
   105,016.50x = 6,727,382,902.63
5. Step 5: Solve for x
   x = 6,727,382,902.63/105,016.50
6. Step 6: Final answer
   x = 64,060.25