Finding the Fourth Proportional to 15,546.53, 23,200.43 and 13,885.63

Step by Step Solution

1. Step 1: Write the proportion equation
   15,546.53 : 23,200.43 = 13,885.63 : x
2. Step 2: Convert to fraction form
   15,546.53/23,200.43 = 13,885.63/x
3. Step 3: Cross multiply
   15,546.53x = 23,200.43 × 13,885.63
4. Step 4: Simplify right side
   15,546.53x = 322,152,459.39
5. Step 5: Solve for x
   x = 322,152,459.39/15,546.53
6. Step 6: Final answer
   x = 20,721.82