Finding the Fourth Proportional to 123,419.40, 184,980.72 and 56,767.68

Step by Step Solution

1. Step 1: Write the proportion equation
   123,419.40 : 184,980.72 = 56,767.68 : x
2. Step 2: Convert to fraction form
   123,419.40/184,980.72 = 56,767.68/x
3. Step 3: Cross multiply
   123,419.40x = 184,980.72 × 56,767.68
4. Step 4: Simplify right side
   123,419.40x = 10,500,926,319.13
5. Step 5: Solve for x
   x = 10,500,926,319.13/123,419.40
6. Step 6: Final answer
   x = 85,083.27