Finding the Fourth Proportional to 9,870.44, 14,808.38 and 5,490.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.44 : 14,808.38 = 5,490.96 : x
2. Step 2: Convert to fraction form
   9,870.44/14,808.38 = 5,490.96/x
3. Step 3: Cross multiply
   9,870.44x = 14,808.38 × 5,490.96
4. Step 4: Simplify right side
   9,870.44x = 81,312,194.79
5. Step 5: Solve for x
   x = 81,312,194.79/9,870.44
6. Step 6: Final answer
   x = 8,237.95