Finding the Fourth Proportional to 28,308.71, 42,468.18 and 23,089.97

Step by Step Solution

1. Step 1: Write the proportion equation
   28,308.71 : 42,468.18 = 23,089.97 : x
2. Step 2: Convert to fraction form
   28,308.71/42,468.18 = 23,089.97/x
3. Step 3: Cross multiply
   28,308.71x = 42,468.18 × 23,089.97
4. Step 4: Simplify right side
   28,308.71x = 980,588,789.81
5. Step 5: Solve for x
   x = 980,588,789.81/28,308.71
6. Step 6: Final answer
   x = 34,639.13