Finding the Fourth Proportional to 42,290.61, 63,443.04 and 14,213.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,290.61 : 63,443.04 = 14,213.31 : x
2. Step 2: Convert to fraction form
   42,290.61/63,443.04 = 14,213.31/x
3. Step 3: Cross multiply
   42,290.61x = 63,443.04 × 14,213.31
4. Step 4: Simplify right side
   42,290.61x = 901,735,594.86
5. Step 5: Solve for x
   x = 901,735,594.86/42,290.61
6. Step 6: Final answer
   x = 21,322.36