Finding the Fourth Proportional to 213,499.86, 294,624.69 and 116,699.40

Step by Step Solution

1. Step 1: Write the proportion equation
   213,499.86 : 294,624.69 = 116,699.40 : x
2. Step 2: Convert to fraction form
   213,499.86/294,624.69 = 116,699.40/x
3. Step 3: Cross multiply
   213,499.86x = 294,624.69 × 116,699.40
4. Step 4: Simplify right side
   213,499.86x = 34,382,524,548.19
5. Step 5: Solve for x
   x = 34,382,524,548.19/213,499.86
6. Step 6: Final answer
   x = 161,042.38