Finding the Fourth Proportional to 218,719.89, 301,833.42 and 118,117.89

Step by Step Solution

1. Step 1: Write the proportion equation
   218,719.89 : 301,833.42 = 118,117.89 : x
2. Step 2: Convert to fraction form
   218,719.89/301,833.42 = 118,117.89/x
3. Step 3: Cross multiply
   218,719.89x = 301,833.42 × 118,117.89
4. Step 4: Simplify right side
   218,719.89x = 35,651,926,701.88
5. Step 5: Solve for x
   x = 35,651,926,701.88/218,719.89
6. Step 6: Final answer
   x = 163,002.67