Finding the Fourth Proportional to 13,186.66, 19,773.59 and 4,870.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,186.66 : 19,773.59 = 4,870.59 : x
2. Step 2: Convert to fraction form
   13,186.66/19,773.59 = 4,870.59/x
3. Step 3: Cross multiply
   13,186.66x = 19,773.59 × 4,870.59
4. Step 4: Simplify right side
   13,186.66x = 96,309,049.72
5. Step 5: Solve for x
   x = 96,309,049.72/13,186.66
6. Step 6: Final answer
   x = 7,303.52