Finding the Fourth Proportional to 224,518.50, 309,835.94 and 123,916.50

Step by Step Solution

1. Step 1: Write the proportion equation
   224,518.50 : 309,835.94 = 123,916.50 : x
2. Step 2: Convert to fraction form
   224,518.50/309,835.94 = 123,916.50/x
3. Step 3: Cross multiply
   224,518.50x = 309,835.94 × 123,916.50
4. Step 4: Simplify right side
   224,518.50x = 38,393,784,639.43
5. Step 5: Solve for x
   x = 38,393,784,639.43/224,518.50
6. Step 6: Final answer
   x = 171,004.99