Finding the Fourth Proportional to 139,545, 210,248.04 and 126,233.46

Step by Step Solution

1. Step 1: Write the proportion equation
   139,545 : 210,248.04 = 126,233.46 : x
2. Step 2: Convert to fraction form
   139,545/210,248.04 = 126,233.46/x
3. Step 3: Cross multiply
   139,545x = 210,248.04 × 126,233.46
4. Step 4: Simplify right side
   139,545x = 26,540,337,547.42
5. Step 5: Solve for x
   x = 26,540,337,547.42/139,545
6. Step 6: Final answer
   x = 190,191.96