Finding the Fourth Proportional to 28,094.77, 42,162.18 and 13,306.96

Step by Step Solution

1. Step 1: Write the proportion equation
   28,094.77 : 42,162.18 = 13,306.96 : x
2. Step 2: Convert to fraction form
   28,094.77/42,162.18 = 13,306.96/x
3. Step 3: Cross multiply
   28,094.77x = 42,162.18 × 13,306.96
4. Step 4: Simplify right side
   28,094.77x = 561,050,442.77
5. Step 5: Solve for x
   x = 561,050,442.77/28,094.77
6. Step 6: Final answer
   x = 19,969.92