Finding the Fourth Proportional to 134,830.72, 186,065.13 and 74,401.89

Step by Step Solution

1. Step 1: Write the proportion equation
   134,830.72 : 186,065.13 = 74,401.89 : x
2. Step 2: Convert to fraction form
   134,830.72/186,065.13 = 74,401.89/x
3. Step 3: Cross multiply
   134,830.72x = 186,065.13 × 74,401.89
4. Step 4: Simplify right side
   134,830.72x = 13,843,597,335.10
5. Step 5: Solve for x
   x = 13,843,597,335.10/134,830.72
6. Step 6: Final answer
   x = 102,673.91