Finding the Fourth Proportional to 58,910.69, 81,270.33 and 39,784.25

Step by Step Solution

1. Step 1: Write the proportion equation
   58,910.69 : 81,270.33 = 39,784.25 : x
2. Step 2: Convert to fraction form
   58,910.69/81,270.33 = 39,784.25/x
3. Step 3: Cross multiply
   58,910.69x = 81,270.33 × 39,784.25
4. Step 4: Simplify right side
   58,910.69x = 3,233,279,126.30
5. Step 5: Solve for x
   x = 3,233,279,126.30/58,910.69
6. Step 6: Final answer
   x = 54,884.42