Finding the Fourth Proportional to 224,507.72, 309,820.02 and 123,905

Step by Step Solution

1. Step 1: Write the proportion equation
   224,507.72 : 309,820.02 = 123,905 : x
2. Step 2: Convert to fraction form
   224,507.72/309,820.02 = 123,905/x
3. Step 3: Cross multiply
   224,507.72x = 309,820.02 × 123,905
4. Step 4: Simplify right side
   224,507.72x = 38,388,249,578.10
5. Step 5: Solve for x
   x = 38,388,249,578.10/224,507.72
6. Step 6: Final answer
   x = 170,988.55