Finding the Fourth Proportional to 28,086.99, 38,775.61 and 19,147.62

Step by Step Solution

1. Step 1: Write the proportion equation
   28,086.99 : 38,775.61 = 19,147.62 : x
2. Step 2: Convert to fraction form
   28,086.99/38,775.61 = 19,147.62/x
3. Step 3: Cross multiply
   28,086.99x = 38,775.61 × 19,147.62
4. Step 4: Simplify right side
   28,086.99x = 742,460,814.89
5. Step 5: Solve for x
   x = 742,460,814.89/28,086.99
6. Step 6: Final answer
   x = 26,434.34