Finding the Fourth Proportional to 123,038.79, 184,414.20 and 56,485.34

Step by Step Solution

1. Step 1: Write the proportion equation
   123,038.79 : 184,414.20 = 56,485.34 : x
2. Step 2: Convert to fraction form
   123,038.79/184,414.20 = 56,485.34/x
3. Step 3: Cross multiply
   123,038.79x = 184,414.20 × 56,485.34
4. Step 4: Simplify right side
   123,038.79x = 10,416,698,787.83
5. Step 5: Solve for x
   x = 10,416,698,787.83/123,038.79
6. Step 6: Final answer
   x = 84,661.91