Finding the Fourth Proportional to 76,436.24, 105,483 and 42,445.52

Step by Step Solution

1. Step 1: Write the proportion equation
   76,436.24 : 105,483 = 42,445.52 : x
2. Step 2: Convert to fraction form
   76,436.24/105,483 = 42,445.52/x
3. Step 3: Cross multiply
   76,436.24x = 105,483 × 42,445.52
4. Step 4: Simplify right side
   76,436.24x = 4,477,280,786.16
5. Step 5: Solve for x
   x = 4,477,280,786.16/76,436.24
6. Step 6: Final answer
   x = 58,575.37