Finding the Fourth Proportional to 22,191.02, 30,619.51 and 13,117.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,191.02 : 30,619.51 = 13,117.84 : x
2. Step 2: Convert to fraction form
   22,191.02/30,619.51 = 13,117.84/x
3. Step 3: Cross multiply
   22,191.02x = 30,619.51 × 13,117.84
4. Step 4: Simplify right side
   22,191.02x = 401,661,897.48
5. Step 5: Solve for x
   x = 401,661,897.48/22,191.02
6. Step 6: Final answer
   x = 18,100.20