Finding the Fourth Proportional to 123,991.72, 185,985.98 and 30,498.28

Step by Step Solution

1. Step 1: Write the proportion equation
   123,991.72 : 185,985.98 = 30,498.28 : x
2. Step 2: Convert to fraction form
   123,991.72/185,985.98 = 30,498.28/x
3. Step 3: Cross multiply
   123,991.72x = 185,985.98 × 30,498.28
4. Step 4: Simplify right side
   123,991.72x = 5,672,252,494.11
5. Step 5: Solve for x
   x = 5,672,252,494.11/123,991.72
6. Step 6: Final answer
   x = 45,747.03