Finding the Fourth Proportional to 7,885.80, 10,848.87 and 7,667.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,885.80 : 10,848.87 = 7,667.10 : x
2. Step 2: Convert to fraction form
   7,885.80/10,848.87 = 7,667.10/x
3. Step 3: Cross multiply
   7,885.80x = 10,848.87 × 7,667.10
4. Step 4: Simplify right side
   7,885.80x = 83,179,371.18
5. Step 5: Solve for x
   x = 83,179,371.18/7,885.80
6. Step 6: Final answer
   x = 10,547.99