Finding the Fourth Proportional to 72,703.02, 109,003.50 and 28,292.34

Step by Step Solution

1. Step 1: Write the proportion equation
   72,703.02 : 109,003.50 = 28,292.34 : x
2. Step 2: Convert to fraction form
   72,703.02/109,003.50 = 28,292.34/x
3. Step 3: Cross multiply
   72,703.02x = 109,003.50 × 28,292.34
4. Step 4: Simplify right side
   72,703.02x = 3,083,964,083.19
5. Step 5: Solve for x
   x = 3,083,964,083.19/72,703.02
6. Step 6: Final answer
   x = 42,418.65