Finding the Fourth Proportional to 224,116.72, 309,272.04 and 122,139.98

Step by Step Solution

1. Step 1: Write the proportion equation
   224,116.72 : 309,272.04 = 122,139.98 : x
2. Step 2: Convert to fraction form
   224,116.72/309,272.04 = 122,139.98/x
3. Step 3: Cross multiply
   224,116.72x = 309,272.04 × 122,139.98
4. Step 4: Simplify right side
   224,116.72x = 37,774,482,133.22
5. Step 5: Solve for x
   x = 37,774,482,133.22/224,116.72
6. Step 6: Final answer
   x = 168,548.25