Finding the Fourth Proportional to 224,422.72, 309,694.80 and 123,820.72

Step by Step Solution

1. Step 1: Write the proportion equation
   224,422.72 : 309,694.80 = 123,820.72 : x
2. Step 2: Convert to fraction form
   224,422.72/309,694.80 = 123,820.72/x
3. Step 3: Cross multiply
   224,422.72x = 309,694.80 × 123,820.72
4. Step 4: Simplify right side
   224,422.72x = 38,346,633,116.26
5. Step 5: Solve for x
   x = 38,346,633,116.26/224,422.72
6. Step 6: Final answer
   x = 170,867.87