Finding the Fourth Proportional to 105,903.54, 158,820.06 and 42,707.34

Step by Step Solution

1. Step 1: Write the proportion equation
   105,903.54 : 158,820.06 = 42,707.34 : x
2. Step 2: Convert to fraction form
   105,903.54/158,820.06 = 42,707.34/x
3. Step 3: Cross multiply
   105,903.54x = 158,820.06 × 42,707.34
4. Step 4: Simplify right side
   105,903.54x = 6,782,782,301.24
5. Step 5: Solve for x
   x = 6,782,782,301.24/105,903.54
6. Step 6: Final answer
   x = 64,046.79