Finding the Fourth Proportional to 9,927.60, 14,870.70 and 4,667.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,927.60 : 14,870.70 = 4,667.10 : x
2. Step 2: Convert to fraction form
   9,927.60/14,870.70 = 4,667.10/x
3. Step 3: Cross multiply
   9,927.60x = 14,870.70 × 4,667.10
4. Step 4: Simplify right side
   9,927.60x = 69,403,043.97
5. Step 5: Solve for x
   x = 69,403,043.97/9,927.60
6. Step 6: Final answer
   x = 6,990.92