Finding the Fourth Proportional to 72,690.90, 109,050.99 and 25,942.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,690.90 : 109,050.99 = 25,942.56 : x
2. Step 2: Convert to fraction form
   72,690.90/109,050.99 = 25,942.56/x
3. Step 3: Cross multiply
   72,690.90x = 109,050.99 × 25,942.56
4. Step 4: Simplify right side
   72,690.90x = 2,829,061,851.13
5. Step 5: Solve for x
   x = 2,829,061,851.13/72,690.90
6. Step 6: Final answer
   x = 38,919.06