Finding the Fourth Proportional to 9,925.80, 14,897.10 and 4,086.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,925.80 : 14,897.10 = 4,086.60 : x
2. Step 2: Convert to fraction form
   9,925.80/14,897.10 = 4,086.60/x
3. Step 3: Cross multiply
   9,925.80x = 14,897.10 × 4,086.60
4. Step 4: Simplify right side
   9,925.80x = 60,878,488.86
5. Step 5: Solve for x
   x = 60,878,488.86/9,925.80
6. Step 6: Final answer
   x = 6,133.36