Finding the Fourth Proportional to 224,244, 309,478.56 and 123,642

Step by Step Solution

1. Step 1: Write the proportion equation
   224,244 : 309,478.56 = 123,642 : x
2. Step 2: Convert to fraction form
   224,244/309,478.56 = 123,642/x
3. Step 3: Cross multiply
   224,244x = 309,478.56 × 123,642
4. Step 4: Simplify right side
   224,244x = 38,264,548,115.52
5. Step 5: Solve for x
   x = 38,264,548,115.52/224,244
6. Step 6: Final answer
   x = 170,638.00