Finding the Fourth Proportional to 21,748.72, 32,632.80 and 10,055.68

Step by Step Solution

1. Step 1: Write the proportion equation
   21,748.72 : 32,632.80 = 10,055.68 : x
2. Step 2: Convert to fraction form
   21,748.72/32,632.80 = 10,055.68/x
3. Step 3: Cross multiply
   21,748.72x = 32,632.80 × 10,055.68
4. Step 4: Simplify right side
   21,748.72x = 328,144,994.30
5. Step 5: Solve for x
   x = 328,144,994.30/21,748.72
6. Step 6: Final answer
   x = 15,088.01