Finding the Fourth Proportional to 76,164.71, 105,107.37 and 42,630.71

Step by Step Solution

1. Step 1: Write the proportion equation
   76,164.71 : 105,107.37 = 42,630.71 : x
2. Step 2: Convert to fraction form
   76,164.71/105,107.37 = 42,630.71/x
3. Step 3: Cross multiply
   76,164.71x = 105,107.37 × 42,630.71
4. Step 4: Simplify right side
   76,164.71x = 4,480,801,809.33
5. Step 5: Solve for x
   x = 4,480,801,809.33/76,164.71
6. Step 6: Final answer
   x = 58,830.42