Finding the Fourth Proportional to 42,071.58, 63,096.57 and 12,482.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,071.58 : 63,096.57 = 12,482.42 : x
2. Step 2: Convert to fraction form
   42,071.58/63,096.57 = 12,482.42/x
3. Step 3: Cross multiply
   42,071.58x = 63,096.57 × 12,482.42
4. Step 4: Simplify right side
   42,071.58x = 787,597,571.82
5. Step 5: Solve for x
   x = 787,597,571.82/42,071.58
6. Step 6: Final answer
   x = 18,720.42