Finding the Fourth Proportional to 220,897.33, 304,742.06 and 139,175.98

Step by Step Solution

1. Step 1: Write the proportion equation
   220,897.33 : 304,742.06 = 139,175.98 : x
2. Step 2: Convert to fraction form
   220,897.33/304,742.06 = 139,175.98/x
3. Step 3: Cross multiply
   220,897.33x = 304,742.06 × 139,175.98
4. Step 4: Simplify right side
   220,897.33x = 42,412,773,340.50
5. Step 5: Solve for x
   x = 42,412,773,340.50/220,897.33
6. Step 6: Final answer
   x = 192,002.20