Finding the Fourth Proportional to 28,387.27, 42,602.78 and 22,854.17

Step by Step Solution

1. Step 1: Write the proportion equation
   28,387.27 : 42,602.78 = 22,854.17 : x
2. Step 2: Convert to fraction form
   28,387.27/42,602.78 = 22,854.17/x
3. Step 3: Cross multiply
   28,387.27x = 42,602.78 × 22,854.17
4. Step 4: Simplify right side
   28,387.27x = 973,651,062.32
5. Step 5: Solve for x
   x = 973,651,062.32/28,387.27
6. Step 6: Final answer
   x = 34,298.86