Finding the Fourth Proportional to 45,910, 68,836.24 and 19,248.72

Step by Step Solution

1. Step 1: Write the proportion equation
   45,910 : 68,836.24 = 19,248.72 : x
2. Step 2: Convert to fraction form
   45,910/68,836.24 = 19,248.72/x
3. Step 3: Cross multiply
   45,910x = 68,836.24 × 19,248.72
4. Step 4: Simplify right side
   45,910x = 1,325,009,509.61
5. Step 5: Solve for x
   x = 1,325,009,509.61/45,910
6. Step 6: Final answer
   x = 28,861.02