Finding the Fourth Proportional to 76,427.58, 105,470.28 and 42,436.14

Step by Step Solution

1. Step 1: Write the proportion equation
   76,427.58 : 105,470.28 = 42,436.14 : x
2. Step 2: Convert to fraction form
   76,427.58/105,470.28 = 42,436.14/x
3. Step 3: Cross multiply
   76,427.58x = 105,470.28 × 42,436.14
4. Step 4: Simplify right side
   76,427.58x = 4,475,751,567.92
5. Step 5: Solve for x
   x = 4,475,751,567.92/76,427.58
6. Step 6: Final answer
   x = 58,562.00