Finding the Fourth Proportional to 249,615.80, 374,168.55 and 123,061.40

Step by Step Solution

1. Step 1: Write the proportion equation
   249,615.80 : 374,168.55 = 123,061.40 : x
2. Step 2: Convert to fraction form
   249,615.80/374,168.55 = 123,061.40/x
3. Step 3: Cross multiply
   249,615.80x = 374,168.55 × 123,061.40
4. Step 4: Simplify right side
   249,615.80x = 46,045,705,598.97
5. Step 5: Solve for x
   x = 46,045,705,598.97/249,615.80
6. Step 6: Final answer
   x = 184,466.31