Finding the Fourth Proportional to 224,429.91, 309,825.50 and 139,574.31

Step by Step Solution

1. Step 1: Write the proportion equation
   224,429.91 : 309,825.50 = 139,574.31 : x
2. Step 2: Convert to fraction form
   224,429.91/309,825.50 = 139,574.31/x
3. Step 3: Cross multiply
   224,429.91x = 309,825.50 × 139,574.31
4. Step 4: Simplify right side
   224,429.91x = 43,243,679,182.71
5. Step 5: Solve for x
   x = 43,243,679,182.71/224,429.91
6. Step 6: Final answer
   x = 192,682.34