Finding the Fourth Proportional to 72,111.01, 108,166.59 and 18,802.94

Step by Step Solution

1. Step 1: Write the proportion equation
   72,111.01 : 108,166.59 = 18,802.94 : x
2. Step 2: Convert to fraction form
   72,111.01/108,166.59 = 18,802.94/x
3. Step 3: Cross multiply
   72,111.01x = 108,166.59 × 18,802.94
4. Step 4: Simplify right side
   72,111.01x = 2,033,849,833.37
5. Step 5: Solve for x
   x = 2,033,849,833.37/72,111.01
6. Step 6: Final answer
   x = 28,204.43