Finding the Fourth Proportional to 134,978.40, 186,290.89 and 83,325.58

Step by Step Solution

1. Step 1: Write the proportion equation
   134,978.40 : 186,290.89 = 83,325.58 : x
2. Step 2: Convert to fraction form
   134,978.40/186,290.89 = 83,325.58/x
3. Step 3: Cross multiply
   134,978.40x = 186,290.89 × 83,325.58
4. Step 4: Simplify right side
   134,978.40x = 15,522,795,783.93
5. Step 5: Solve for x
   x = 15,522,795,783.93/134,978.40
6. Step 6: Final answer
   x = 115,002.07