Finding the Fourth Proportional to 9,980.64, 14,970.42 and 3,055.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980.64 : 14,970.42 = 3,055.14 : x
2. Step 2: Convert to fraction form
   9,980.64/14,970.42 = 3,055.14/x
3. Step 3: Cross multiply
   9,980.64x = 14,970.42 × 3,055.14
4. Step 4: Simplify right side
   9,980.64x = 45,736,728.96
5. Step 5: Solve for x
   x = 45,736,728.96/9,980.64
6. Step 6: Final answer
   x = 4,582.54