Finding the Fourth Proportional to 105,233.55, 157,746.42 and 42,015.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105,233.55 : 157,746.42 = 42,015.59 : x
2. Step 2: Convert to fraction form
   105,233.55/157,746.42 = 42,015.59/x
3. Step 3: Cross multiply
   105,233.55x = 157,746.42 × 42,015.59
4. Step 4: Simplify right side
   105,233.55x = 6,627,808,117.96
5. Step 5: Solve for x
   x = 6,627,808,117.96/105,233.55
6. Step 6: Final answer
   x = 62,981.89