Finding the Fourth Proportional to 9,986.86, 14,980.32 and 3,061.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.86 : 14,980.32 = 3,061.36 : x
2. Step 2: Convert to fraction form
   9,986.86/14,980.32 = 3,061.36/x
3. Step 3: Cross multiply
   9,986.86x = 14,980.32 × 3,061.36
4. Step 4: Simplify right side
   9,986.86x = 45,860,152.44
5. Step 5: Solve for x
   x = 45,860,152.44/9,986.86
6. Step 6: Final answer
   x = 4,592.05