Finding the Fourth Proportional to 21,891.34, 32,844.30 and 7,100.74

Step by Step Solution

1. Step 1: Write the proportion equation
   21,891.34 : 32,844.30 = 7,100.74 : x
2. Step 2: Convert to fraction form
   21,891.34/32,844.30 = 7,100.74/x
3. Step 3: Cross multiply
   21,891.34x = 32,844.30 × 7,100.74
4. Step 4: Simplify right side
   21,891.34x = 233,218,834.78
5. Step 5: Solve for x
   x = 233,218,834.78/21,891.34
6. Step 6: Final answer
   x = 10,653.47