Finding the Fourth Proportional to 42,374.34, 63,570.96 and 13,912.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,374.34 : 63,570.96 = 13,912.56 : x
2. Step 2: Convert to fraction form
   42,374.34/63,570.96 = 13,912.56/x
3. Step 3: Cross multiply
   42,374.34x = 63,570.96 × 13,912.56
4. Step 4: Simplify right side
   42,374.34x = 884,434,795.26
5. Step 5: Solve for x
   x = 884,434,795.26/42,374.34
6. Step 6: Final answer
   x = 20,871.94