Finding the Fourth Proportional to 78,373.98, 117,575.55 and 25,820.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,373.98 : 117,575.55 = 25,820.28 : x
2. Step 2: Convert to fraction form
   78,373.98/117,575.55 = 25,820.28/x
3. Step 3: Cross multiply
   78,373.98x = 117,575.55 × 25,820.28
4. Step 4: Simplify right side
   78,373.98x = 3,035,833,622.15
5. Step 5: Solve for x
   x = 3,035,833,622.15/78,373.98
6. Step 6: Final answer
   x = 38,735.22