Finding the Fourth Proportional to 28,077.02, 42,099.83 and 11,417.55

Step by Step Solution

1. Step 1: Write the proportion equation
   28,077.02 : 42,099.83 = 11,417.55 : x
2. Step 2: Convert to fraction form
   28,077.02/42,099.83 = 11,417.55/x
3. Step 3: Cross multiply
   28,077.02x = 42,099.83 × 11,417.55
4. Step 4: Simplify right side
   28,077.02x = 480,676,914.02
5. Step 5: Solve for x
   x = 480,676,914.02/28,077.02
6. Step 6: Final answer
   x = 17,119.94