Finding the Fourth Proportional to 78,588.50, 117,882.79 and 25,997.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,588.50 : 117,882.79 = 25,997.99 : x
2. Step 2: Convert to fraction form
   78,588.50/117,882.79 = 25,997.99/x
3. Step 3: Cross multiply
   78,588.50x = 117,882.79 × 25,997.99
4. Step 4: Simplify right side
   78,588.50x = 3,064,715,014.30
5. Step 5: Solve for x
   x = 3,064,715,014.30/78,588.50
6. Step 6: Final answer
   x = 38,996.99