Finding the Fourth Proportional to 42,495.96, 63,685.62 and 21,675.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,495.96 : 63,685.62 = 21,675.72 : x
2. Step 2: Convert to fraction form
   42,495.96/63,685.62 = 21,675.72/x
3. Step 3: Cross multiply
   42,495.96x = 63,685.62 × 21,675.72
4. Step 4: Simplify right side
   42,495.96x = 1,380,431,667.15
5. Step 5: Solve for x
   x = 1,380,431,667.15/42,495.96
6. Step 6: Final answer
   x = 32,483.83