Finding the Fourth Proportional to 35,462.72, 48,916.90 and 21,112.96

Step by Step Solution

1. Step 1: Write the proportion equation
   35,462.72 : 48,916.90 = 21,112.96 : x
2. Step 2: Convert to fraction form
   35,462.72/48,916.90 = 21,112.96/x
3. Step 3: Cross multiply
   35,462.72x = 48,916.90 × 21,112.96
4. Step 4: Simplify right side
   35,462.72x = 1,032,780,553.02
5. Step 5: Solve for x
   x = 1,032,780,553.02/35,462.72
6. Step 6: Final answer
   x = 29,122.99