Finding the Fourth Proportional to 105,015, 157,595.46 and 42,685.56

Step by Step Solution

1. Step 1: Write the proportion equation
   105,015 : 157,595.46 = 42,685.56 : x
2. Step 2: Convert to fraction form
   105,015/157,595.46 = 42,685.56/x
3. Step 3: Cross multiply
   105,015x = 157,595.46 × 42,685.56
4. Step 4: Simplify right side
   105,015x = 6,727,050,463.56
5. Step 5: Solve for x
   x = 6,727,050,463.56/105,015
6. Step 6: Final answer
   x = 64,058.00