Finding the Fourth Proportional to 9,858.68, 14,793.69 and 5,475.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,858.68 : 14,793.69 = 5,475.77 : x
2. Step 2: Convert to fraction form
   9,858.68/14,793.69 = 5,475.77/x
3. Step 3: Cross multiply
   9,858.68x = 14,793.69 × 5,475.77
4. Step 4: Simplify right side
   9,858.68x = 81,006,843.89
5. Step 5: Solve for x
   x = 81,006,843.89/9,858.68
6. Step 6: Final answer
   x = 8,216.80