Finding the Fourth Proportional to 123,031.38, 184,403.70 and 56,478.54

Step by Step Solution

1. Step 1: Write the proportion equation
   123,031.38 : 184,403.70 = 56,478.54 : x
2. Step 2: Convert to fraction form
   123,031.38/184,403.70 = 56,478.54/x
3. Step 3: Cross multiply
   123,031.38x = 184,403.70 × 56,478.54
4. Step 4: Simplify right side
   123,031.38x = 10,414,851,746.60
5. Step 5: Solve for x
   x = 10,414,851,746.60/123,031.38
6. Step 6: Final answer
   x = 84,651.99