Finding the Fourth Proportional to 110,498.83, 152,448.40 and 72,280.17

Step by Step Solution

1. Step 1: Write the proportion equation
   110,498.83 : 152,448.40 = 72,280.17 : x
2. Step 2: Convert to fraction form
   110,498.83/152,448.40 = 72,280.17/x
3. Step 3: Cross multiply
   110,498.83x = 152,448.40 × 72,280.17
4. Step 4: Simplify right side
   110,498.83x = 11,018,996,087.53
5. Step 5: Solve for x
   x = 11,018,996,087.53/110,498.83
6. Step 6: Final answer
   x = 99,720.48