Finding the Fourth Proportional to 72,802.59, 109,220.27 and 28,442.00

Step by Step Solution

1. Step 1: Write the proportion equation
   72,802.59 : 109,220.27 = 28,442.00 : x
2. Step 2: Convert to fraction form
   72,802.59/109,220.27 = 28,442.00/x
3. Step 3: Cross multiply
   72,802.59x = 109,220.27 × 28,442.00
4. Step 4: Simplify right side
   72,802.59x = 3,106,442,231.03
5. Step 5: Solve for x
   x = 3,106,442,231.03/72,802.59
6. Step 6: Final answer
   x = 42,669.39