Finding the Fourth Proportional to 72,373.31, 99,863.54 and 45,496.79

Step by Step Solution

1. Step 1: Write the proportion equation
   72,373.31 : 99,863.54 = 45,496.79 : x
2. Step 2: Convert to fraction form
   72,373.31/99,863.54 = 45,496.79/x
3. Step 3: Cross multiply
   72,373.31x = 99,863.54 × 45,496.79
4. Step 4: Simplify right side
   72,373.31x = 4,543,470,508.04
5. Step 5: Solve for x
   x = 4,543,470,508.04/72,373.31
6. Step 6: Final answer
   x = 62,778.26