Finding the Fourth Proportional to 76,133, 105,063.54 and 42,605.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,133 : 105,063.54 = 42,605.48 : x
2. Step 2: Convert to fraction form
   76,133/105,063.54 = 42,605.48/x
3. Step 3: Cross multiply
   76,133x = 105,063.54 × 42,605.48
4. Step 4: Simplify right side
   76,133x = 4,476,282,552.20
5. Step 5: Solve for x
   x = 4,476,282,552.20/76,133
6. Step 6: Final answer
   x = 58,795.56