Finding the Fourth Proportional to 72,892.79, 109,354.01 and 30,772.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,892.79 : 109,354.01 = 30,772.88 : x
2. Step 2: Convert to fraction form
   72,892.79/109,354.01 = 30,772.88/x
3. Step 3: Cross multiply
   72,892.79x = 109,354.01 × 30,772.88
4. Step 4: Simplify right side
   72,892.79x = 3,365,137,673.38
5. Step 5: Solve for x
   x = 3,365,137,673.38/72,892.79
6. Step 6: Final answer
   x = 46,165.58