Finding the Fourth Proportional to 72,016.28, 99,354.74 and 45,111.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,016.28 : 99,354.74 = 45,111.96 : x
2. Step 2: Convert to fraction form
   72,016.28/99,354.74 = 45,111.96/x
3. Step 3: Cross multiply
   72,016.28x = 99,354.74 × 45,111.96
4. Step 4: Simplify right side
   72,016.28x = 4,482,087,056.69
5. Step 5: Solve for x
   x = 4,482,087,056.69/72,016.28
6. Step 6: Final answer
   x = 62,237.14