Finding the Fourth Proportional to 27,061.17, 37,320.23 and 16,990.55

Step by Step Solution

1. Step 1: Write the proportion equation
   27,061.17 : 37,320.23 = 16,990.55 : x
2. Step 2: Convert to fraction form
   27,061.17/37,320.23 = 16,990.55/x
3. Step 3: Cross multiply
   27,061.17x = 37,320.23 × 16,990.55
4. Step 4: Simplify right side
   27,061.17x = 634,091,233.83
5. Step 5: Solve for x
   x = 634,091,233.83/27,061.17
6. Step 6: Final answer
   x = 23,431.77