Finding the Fourth Proportional to 76,837.72, 106,027.50 and 42,843.28

Step by Step Solution

1. Step 1: Write the proportion equation
   76,837.72 : 106,027.50 = 42,843.28 : x
2. Step 2: Convert to fraction form
   76,837.72/106,027.50 = 42,843.28/x
3. Step 3: Cross multiply
   76,837.72x = 106,027.50 × 42,843.28
4. Step 4: Simplify right side
   76,837.72x = 4,542,565,870.20
5. Step 5: Solve for x
   x = 4,542,565,870.20/76,837.72
6. Step 6: Final answer
   x = 59,118.96