Finding the Fourth Proportional to 11,997.45, 17,994.03 and 7,061.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,997.45 : 17,994.03 = 7,061.31 : x
2. Step 2: Convert to fraction form
   11,997.45/17,994.03 = 7,061.31/x
3. Step 3: Cross multiply
   11,997.45x = 17,994.03 × 7,061.31
4. Step 4: Simplify right side
   11,997.45x = 127,061,423.98
5. Step 5: Solve for x
   x = 127,061,423.98/11,997.45
6. Step 6: Final answer
   x = 10,590.70