Finding the Fourth Proportional to 155,091.35, 231,586.43 and 123,142.93

Step by Step Solution

1. Step 1: Write the proportion equation
   155,091.35 : 231,586.43 = 123,142.93 : x
2. Step 2: Convert to fraction form
   155,091.35/231,586.43 = 123,142.93/x
3. Step 3: Cross multiply
   155,091.35x = 231,586.43 × 123,142.93
4. Step 4: Simplify right side
   155,091.35x = 28,518,231,267.33
5. Step 5: Solve for x
   x = 28,518,231,267.33/155,091.35
6. Step 6: Final answer
   x = 183,880.22