Finding the Fourth Proportional to 336,300.15, 504,690.12 and 186,660.15

Step by Step Solution

1. Step 1: Write the proportion equation
   336,300.15 : 504,690.12 = 186,660.15 : x
2. Step 2: Convert to fraction form
   336,300.15/504,690.12 = 186,660.15/x
3. Step 3: Cross multiply
   336,300.15x = 504,690.12 × 186,660.15
4. Step 4: Simplify right side
   336,300.15x = 94,205,531,085.15
5. Step 5: Solve for x
   x = 94,205,531,085.15/336,300.15
6. Step 6: Final answer
   x = 280,123.37