Finding the Fourth Proportional to 231,499.52, 348,984.42 and 216,068.36

Step by Step Solution

1. Step 1: Write the proportion equation
   231,499.52 : 348,984.42 = 216,068.36 : x
2. Step 2: Convert to fraction form
   231,499.52/348,984.42 = 216,068.36/x
3. Step 3: Cross multiply
   231,499.52x = 348,984.42 × 216,068.36
4. Step 4: Simplify right side
   231,499.52x = 75,404,491,294.95
5. Step 5: Solve for x
   x = 75,404,491,294.95/231,499.52
6. Step 6: Final answer
   x = 325,722.02