Finding the Fourth Proportional to 23,601.78, 32,424.71 and 21,116.77

Step by Step Solution

1. Step 1: Write the proportion equation
   23,601.78 : 32,424.71 = 21,116.77 : x
2. Step 2: Convert to fraction form
   23,601.78/32,424.71 = 21,116.77/x
3. Step 3: Cross multiply
   23,601.78x = 32,424.71 × 21,116.77
4. Step 4: Simplify right side
   23,601.78x = 684,704,956.74
5. Step 5: Solve for x
   x = 684,704,956.74/23,601.78
6. Step 6: Final answer
   x = 29,010.73