Finding the Fourth Proportional to 103,887, 155,856.42 and 30,015

Step by Step Solution

1. Step 1: Write the proportion equation
   103,887 : 155,856.42 = 30,015 : x
2. Step 2: Convert to fraction form
   103,887/155,856.42 = 30,015/x
3. Step 3: Cross multiply
   103,887x = 155,856.42 × 30,015
4. Step 4: Simplify right side
   103,887x = 4,678,030,446.30
5. Step 5: Solve for x
   x = 4,678,030,446.30/103,887
6. Step 6: Final answer
   x = 45,029.99