Finding the Fourth Proportional to 35,455, 48,927.54 and 21,124.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,455 : 48,927.54 = 21,124.72 : x
2. Step 2: Convert to fraction form
   35,455/48,927.54 = 21,124.72/x
3. Step 3: Cross multiply
   35,455x = 48,927.54 × 21,124.72
4. Step 4: Simplify right side
   35,455x = 1,033,580,582.79
5. Step 5: Solve for x
   x = 1,033,580,582.79/35,455
6. Step 6: Final answer
   x = 29,151.90