Finding the Fourth Proportional to 76,466.16, 105,521.94 and 42,473.30

Step by Step Solution

1. Step 1: Write the proportion equation
   76,466.16 : 105,521.94 = 42,473.30 : x
2. Step 2: Convert to fraction form
   76,466.16/105,521.94 = 42,473.30/x
3. Step 3: Cross multiply
   76,466.16x = 105,521.94 × 42,473.30
4. Step 4: Simplify right side
   76,466.16x = 4,481,864,486.59
5. Step 5: Solve for x
   x = 4,481,864,486.59/76,466.16
6. Step 6: Final answer
   x = 58,612.39