Finding the Fourth Proportional to 42,071.62, 63,083.76 and 13,976.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,071.62 : 63,083.76 = 13,976.64 : x
2. Step 2: Convert to fraction form
   42,071.62/63,083.76 = 13,976.64/x
3. Step 3: Cross multiply
   42,071.62x = 63,083.76 × 13,976.64
4. Step 4: Simplify right side
   42,071.62x = 881,699,003.37
5. Step 5: Solve for x
   x = 881,699,003.37/42,071.62
6. Step 6: Final answer
   x = 20,957.10