Finding the Fourth Proportional to 9,877.98, 14,809.28 and 4,945.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,877.98 : 14,809.28 = 4,945.08 : x
2. Step 2: Convert to fraction form
   9,877.98/14,809.28 = 4,945.08/x
3. Step 3: Cross multiply
   9,877.98x = 14,809.28 × 4,945.08
4. Step 4: Simplify right side
   9,877.98x = 73,233,074.34
5. Step 5: Solve for x
   x = 73,233,074.34/9,877.98
6. Step 6: Final answer
   x = 7,413.77