Finding the Fourth Proportional to 72,776.94, 109,215.54 and 25,392.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,776.94 : 109,215.54 = 25,392.30 : x
2. Step 2: Convert to fraction form
   72,776.94/109,215.54 = 25,392.30/x
3. Step 3: Cross multiply
   72,776.94x = 109,215.54 × 25,392.30
4. Step 4: Simplify right side
   72,776.94x = 2,773,233,756.34
5. Step 5: Solve for x
   x = 2,773,233,756.34/72,776.94
6. Step 6: Final answer
   x = 38,105.94