Finding the Fourth Proportional to 9,987.94, 14,991.11 and 5,061.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,987.94 : 14,991.11 = 5,061.07 : x
2. Step 2: Convert to fraction form
   9,987.94/14,991.11 = 5,061.07/x
3. Step 3: Cross multiply
   9,987.94x = 14,991.11 × 5,061.07
4. Step 4: Simplify right side
   9,987.94x = 75,870,956.83
5. Step 5: Solve for x
   x = 75,870,956.83/9,987.94
6. Step 6: Final answer
   x = 7,596.26