Finding the Fourth Proportional to 42,573.61, 63,859.72 and 14,513.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42,573.61 : 63,859.72 = 14,513.21 : x
2. Step 2: Convert to fraction form
   42,573.61/63,859.72 = 14,513.21/x
3. Step 3: Cross multiply
   42,573.61x = 63,859.72 × 14,513.21
4. Step 4: Simplify right side
   42,573.61x = 926,809,526.90
5. Step 5: Solve for x
   x = 926,809,526.90/42,573.61
6. Step 6: Final answer
   x = 21,769.58