Finding the Fourth Proportional to 42,051.54, 63,087.94 and 13,971.74

Step by Step Solution

1. Step 1: Write the proportion equation
   42,051.54 : 63,087.94 = 13,971.74 : x
2. Step 2: Convert to fraction form
   42,051.54/63,087.94 = 13,971.74/x
3. Step 3: Cross multiply
   42,051.54x = 63,087.94 × 13,971.74
4. Step 4: Simplify right side
   42,051.54x = 881,448,294.82
5. Step 5: Solve for x
   x = 881,448,294.82/42,051.54
6. Step 6: Final answer
   x = 20,961.14