Finding the Fourth Proportional to 17,990.58, 26,982.01 and 10,100.77

Step by Step Solution

1. Step 1: Write the proportion equation
   17,990.58 : 26,982.01 = 10,100.77 : x
2. Step 2: Convert to fraction form
   17,990.58/26,982.01 = 10,100.77/x
3. Step 3: Cross multiply
   17,990.58x = 26,982.01 × 10,100.77
4. Step 4: Simplify right side
   17,990.58x = 272,539,077.15
5. Step 5: Solve for x
   x = 272,539,077.15/17,990.58
6. Step 6: Final answer
   x = 15,148.99