Finding the Fourth Proportional to 123,430.77, 184,997.25 and 56,779.47

Step by Step Solution

1. Step 1: Write the proportion equation
   123,430.77 : 184,997.25 = 56,779.47 : x
2. Step 2: Convert to fraction form
   123,430.77/184,997.25 = 56,779.47/x
3. Step 3: Cross multiply
   123,430.77x = 184,997.25 × 56,779.47
4. Step 4: Simplify right side
   123,430.77x = 10,504,045,806.46
5. Step 5: Solve for x
   x = 10,504,045,806.46/123,430.77
6. Step 6: Final answer
   x = 85,100.71