Finding the Fourth Proportional to 76,435.48, 105,475.18 and 42,895

Step by Step Solution

1. Step 1: Write the proportion equation
   76,435.48 : 105,475.18 = 42,895 : x
2. Step 2: Convert to fraction form
   76,435.48/105,475.18 = 42,895/x
3. Step 3: Cross multiply
   76,435.48x = 105,475.18 × 42,895
4. Step 4: Simplify right side
   76,435.48x = 4,524,357,846.10
5. Step 5: Solve for x
   x = 4,524,357,846.10/76,435.48
6. Step 6: Final answer
   x = 59,191.85