Finding the Fourth Proportional to 65,881, 98,667.74 and 51,042.28

Step by Step Solution

1. Step 1: Write the proportion equation
   65,881 : 98,667.74 = 51,042.28 : x
2. Step 2: Convert to fraction form
   65,881/98,667.74 = 51,042.28/x
3. Step 3: Cross multiply
   65,881x = 98,667.74 × 51,042.28
4. Step 4: Simplify right side
   65,881x = 5,036,226,412.05
5. Step 5: Solve for x
   x = 5,036,226,412.05/65,881
6. Step 6: Final answer
   x = 76,444.29