Finding the Fourth Proportional to 73,988, 102,105.96 and 40,456.16

Step by Step Solution

1. Step 1: Write the proportion equation
   73,988 : 102,105.96 = 40,456.16 : x
2. Step 2: Convert to fraction form
   73,988/102,105.96 = 40,456.16/x
3. Step 3: Cross multiply
   73,988x = 102,105.96 × 40,456.16
4. Step 4: Simplify right side
   73,988x = 4,130,815,054.71
5. Step 5: Solve for x
   x = 4,130,815,054.71/73,988
6. Step 6: Final answer
   x = 55,830.88