Finding the Fourth Proportional to 9,987.18, 13,782.35 and 5,510.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,987.18 : 13,782.35 = 5,510.93 : x
2. Step 2: Convert to fraction form
   9,987.18/13,782.35 = 5,510.93/x
3. Step 3: Cross multiply
   9,987.18x = 13,782.35 × 5,510.93
4. Step 4: Simplify right side
   9,987.18x = 75,953,614.32
5. Step 5: Solve for x
   x = 75,953,614.32/9,987.18
6. Step 6: Final answer
   x = 7,605.11