Finding the Fourth Proportional to 42,049.88, 63,068.72 and 13,583.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,049.88 : 63,068.72 = 13,583.04 : x
2. Step 2: Convert to fraction form
   42,049.88/63,068.72 = 13,583.04/x
3. Step 3: Cross multiply
   42,049.88x = 63,068.72 × 13,583.04
4. Step 4: Simplify right side
   42,049.88x = 856,664,946.51
5. Step 5: Solve for x
   x = 856,664,946.51/42,049.88
6. Step 6: Final answer
   x = 20,372.59