Finding the Fourth Proportional to 123,186.76, 184,791.95 and 56,645.39

Step by Step Solution

1. Step 1: Write the proportion equation
   123,186.76 : 184,791.95 = 56,645.39 : x
2. Step 2: Convert to fraction form
   123,186.76/184,791.95 = 56,645.39/x
3. Step 3: Cross multiply
   123,186.76x = 184,791.95 × 56,645.39
4. Step 4: Simplify right side
   123,186.76x = 10,467,612,076.61
5. Step 5: Solve for x
   x = 10,467,612,076.61/123,186.76
6. Step 6: Final answer
   x = 84,973.52