Finding the Fourth Proportional to 72,577.02, 108,814.50 and 28,166.34

Step by Step Solution

1. Step 1: Write the proportion equation
   72,577.02 : 108,814.50 = 28,166.34 : x
2. Step 2: Convert to fraction form
   72,577.02/108,814.50 = 28,166.34/x
3. Step 3: Cross multiply
   72,577.02x = 108,814.50 × 28,166.34
4. Step 4: Simplify right side
   72,577.02x = 3,064,906,203.93
5. Step 5: Solve for x
   x = 3,064,906,203.93/72,577.02
6. Step 6: Final answer
   x = 42,229.71