Finding the Fourth Proportional to 42,294.34, 63,443.05 and 14,215.33

Step by Step Solution

1. Step 1: Write the proportion equation
   42,294.34 : 63,443.05 = 14,215.33 : x
2. Step 2: Convert to fraction form
   42,294.34/63,443.05 = 14,215.33/x
3. Step 3: Cross multiply
   42,294.34x = 63,443.05 × 14,215.33
4. Step 4: Simplify right side
   42,294.34x = 901,863,935.72
5. Step 5: Solve for x
   x = 901,863,935.72/42,294.34
6. Step 6: Final answer
   x = 21,323.51