Finding the Fourth Proportional to 21,322.74, 31,977.63 and 7,468.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,322.74 : 31,977.63 = 7,468.50 : x
2. Step 2: Convert to fraction form
   21,322.74/31,977.63 = 7,468.50/x
3. Step 3: Cross multiply
   21,322.74x = 31,977.63 × 7,468.50
4. Step 4: Simplify right side
   21,322.74x = 238,824,929.66
5. Step 5: Solve for x
   x = 238,824,929.66/21,322.74
6. Step 6: Final answer
   x = 11,200.48