Finding the Fourth Proportional to 78,780.82, 118,186.59 and 25,486.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,780.82 : 118,186.59 = 25,486.01 : x
2. Step 2: Convert to fraction form
   78,780.82/118,186.59 = 25,486.01/x
3. Step 3: Cross multiply
   78,780.82x = 118,186.59 × 25,486.01
4. Step 4: Simplify right side
   78,780.82x = 3,012,103,896.24
5. Step 5: Solve for x
   x = 3,012,103,896.24/78,780.82
6. Step 6: Final answer
   x = 38,233.98