Finding the Fourth Proportional to 42,483.96, 63,667.62 and 21,663.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,483.96 : 63,667.62 = 21,663.72 : x
2. Step 2: Convert to fraction form
   42,483.96/63,667.62 = 21,663.72/x
3. Step 3: Cross multiply
   42,483.96x = 63,667.62 × 21,663.72
4. Step 4: Simplify right side
   42,483.96x = 1,379,277,492.75
5. Step 5: Solve for x
   x = 1,379,277,492.75/42,483.96
6. Step 6: Final answer
   x = 32,465.84