Finding the Fourth Proportional to 7,783.02, 11,667.96 and 3,620.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,783.02 : 11,667.96 = 3,620.88 : x
2. Step 2: Convert to fraction form
   7,783.02/11,667.96 = 3,620.88/x
3. Step 3: Cross multiply
   7,783.02x = 11,667.96 × 3,620.88
4. Step 4: Simplify right side
   7,783.02x = 42,248,283.00
5. Step 5: Solve for x
   x = 42,248,283.00/7,783.02
6. Step 6: Final answer
   x = 5,428.26