Finding the Fourth Proportional to 72,994.78, 109,491.93 and 17,590.78

Step by Step Solution

1. Step 1: Write the proportion equation
   72,994.78 : 109,491.93 = 17,590.78 : x
2. Step 2: Convert to fraction form
   72,994.78/109,491.93 = 17,590.78/x
3. Step 3: Cross multiply
   72,994.78x = 109,491.93 × 17,590.78
4. Step 4: Simplify right side
   72,994.78x = 1,926,048,452.41
5. Step 5: Solve for x
   x = 1,926,048,452.41/72,994.78
6. Step 6: Final answer
   x = 26,386.11