Finding the Fourth Proportional to 40,088.98, 55,322.89 and 22,185.21

Step by Step Solution

1. Step 1: Write the proportion equation
   40,088.98 : 55,322.89 = 22,185.21 : x
2. Step 2: Convert to fraction form
   40,088.98/55,322.89 = 22,185.21/x
3. Step 3: Cross multiply
   40,088.98x = 55,322.89 × 22,185.21
4. Step 4: Simplify right side
   40,088.98x = 1,227,349,932.46
5. Step 5: Solve for x
   x = 1,227,349,932.46/40,088.98
6. Step 6: Final answer
   x = 30,615.64