Finding the Fourth Proportional to 28,084.84, 42,131.82 and 10,556.08

Step by Step Solution

1. Step 1: Write the proportion equation
   28,084.84 : 42,131.82 = 10,556.08 : x
2. Step 2: Convert to fraction form
   28,084.84/42,131.82 = 10,556.08/x
3. Step 3: Cross multiply
   28,084.84x = 42,131.82 × 10,556.08
4. Step 4: Simplify right side
   28,084.84x = 444,746,862.47
5. Step 5: Solve for x
   x = 444,746,862.47/28,084.84
6. Step 6: Final answer
   x = 15,835.83