Finding the Fourth Proportional to 42,052.05, 63,087.12 and 12,471.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,052.05 : 63,087.12 = 12,471.93 : x
2. Step 2: Convert to fraction form
   42,052.05/63,087.12 = 12,471.93/x
3. Step 3: Cross multiply
   42,052.05x = 63,087.12 × 12,471.93
4. Step 4: Simplify right side
   42,052.05x = 786,818,144.54
5. Step 5: Solve for x
   x = 786,818,144.54/42,052.05
6. Step 6: Final answer
   x = 18,710.58