Finding the Fourth Proportional to 110,499.58, 152,449.43 and 72,280.92

Step by Step Solution

1. Step 1: Write the proportion equation
   110,499.58 : 152,449.43 = 72,280.92 : x
2. Step 2: Convert to fraction form
   110,499.58/152,449.43 = 72,280.92/x
3. Step 3: Cross multiply
   110,499.58x = 152,449.43 × 72,280.92
4. Step 4: Simplify right side
   110,499.58x = 11,019,185,053.88
5. Step 5: Solve for x
   x = 11,019,185,053.88/110,499.58
6. Step 6: Final answer
   x = 99,721.51