Finding the Fourth Proportional to 74,789.96, 112,181.82 and 30,415

Step by Step Solution

1. Step 1: Write the proportion equation
   74,789.96 : 112,181.82 = 30,415 : x
2. Step 2: Convert to fraction form
   74,789.96/112,181.82 = 30,415/x
3. Step 3: Cross multiply
   74,789.96x = 112,181.82 × 30,415
4. Step 4: Simplify right side
   74,789.96x = 3,412,010,055.30
5. Step 5: Solve for x
   x = 3,412,010,055.30/74,789.96
6. Step 6: Final answer
   x = 45,621.23