Finding the Fourth Proportional to 74,014.72, 111,024.32 and 21,436

Step by Step Solution

1. Step 1: Write the proportion equation
   74,014.72 : 111,024.32 = 21,436 : x
2. Step 2: Convert to fraction form
   74,014.72/111,024.32 = 21,436/x
3. Step 3: Cross multiply
   74,014.72x = 111,024.32 × 21,436
4. Step 4: Simplify right side
   74,014.72x = 2,379,917,323.52
5. Step 5: Solve for x
   x = 2,379,917,323.52/74,014.72
6. Step 6: Final answer
   x = 32,154.65