Finding the Fourth Proportional to 123,042.80, 184,510.20 and 56,460.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,042.80 : 184,510.20 = 56,460.80 : x
2. Step 2: Convert to fraction form
   123,042.80/184,510.20 = 56,460.80/x
3. Step 3: Cross multiply
   123,042.80x = 184,510.20 × 56,460.80
4. Step 4: Simplify right side
   123,042.80x = 10,417,593,500.16
5. Step 5: Solve for x
   x = 10,417,593,500.16/123,042.80
6. Step 6: Final answer
   x = 84,666.42