Finding the Fourth Proportional to 9,994.42, 14,991.90 and 2,598.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,994.42 : 14,991.90 = 2,598.72 : x
2. Step 2: Convert to fraction form
   9,994.42/14,991.90 = 2,598.72/x
3. Step 3: Cross multiply
   9,994.42x = 14,991.90 × 2,598.72
4. Step 4: Simplify right side
   9,994.42x = 38,959,750.37
5. Step 5: Solve for x
   x = 38,959,750.37/9,994.42
6. Step 6: Final answer
   x = 3,898.15