Finding the Fourth Proportional to 42,038.56, 63,065.28 and 13,960.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,038.56 : 63,065.28 = 13,960.32 : x
2. Step 2: Convert to fraction form
   42,038.56/63,065.28 = 13,960.32/x
3. Step 3: Cross multiply
   42,038.56x = 63,065.28 × 13,960.32
4. Step 4: Simplify right side
   42,038.56x = 880,411,489.69
5. Step 5: Solve for x
   x = 880,411,489.69/42,038.56
6. Step 6: Final answer
   x = 20,942.95