Finding the Fourth Proportional to 11,870.84, 17,808.78 and 4,475.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870.84 : 17,808.78 = 4,475.12 : x
2. Step 2: Convert to fraction form
   11,870.84/17,808.78 = 4,475.12/x
3. Step 3: Cross multiply
   11,870.84x = 17,808.78 × 4,475.12
4. Step 4: Simplify right side
   11,870.84x = 79,696,427.55
5. Step 5: Solve for x
   x = 79,696,427.55/11,870.84
6. Step 6: Final answer
   x = 6,713.63