Finding the Fourth Proportional to 123,020.64, 184,298.76 and 70,271.28

Step by Step Solution

1. Step 1: Write the proportion equation
   123,020.64 : 184,298.76 = 70,271.28 : x
2. Step 2: Convert to fraction form
   123,020.64/184,298.76 = 70,271.28/x
3. Step 3: Cross multiply
   123,020.64x = 184,298.76 × 70,271.28
4. Step 4: Simplify right side
   123,020.64x = 12,950,909,767.61
5. Step 5: Solve for x
   x = 12,950,909,767.61/123,020.64
6. Step 6: Final answer
   x = 105,274.28