Finding the Fourth Proportional to 42,185.32, 63,282.30 and 15,912.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,185.32 : 63,282.30 = 15,912.16 : x
2. Step 2: Convert to fraction form
   42,185.32/63,282.30 = 15,912.16/x
3. Step 3: Cross multiply
   42,185.32x = 63,282.30 × 15,912.16
4. Step 4: Simplify right side
   42,185.32x = 1,006,958,082.77
5. Step 5: Solve for x
   x = 1,006,958,082.77/42,185.32
6. Step 6: Final answer
   x = 23,869.87