Finding the Fourth Proportional to 72,258.34, 99,736.54 and 42,049.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,258.34 : 99,736.54 = 42,049.50 : x
2. Step 2: Convert to fraction form
   72,258.34/99,736.54 = 42,049.50/x
3. Step 3: Cross multiply
   72,258.34x = 99,736.54 × 42,049.50
4. Step 4: Simplify right side
   72,258.34x = 4,193,871,638.73
5. Step 5: Solve for x
   x = 4,193,871,638.73/72,258.34
6. Step 6: Final answer
   x = 58,039.97