Finding the Fourth Proportional to 76,109.52, 105,036.39 and 42,119.43

Step by Step Solution

1. Step 1: Write the proportion equation
   76,109.52 : 105,036.39 = 42,119.43 : x
2. Step 2: Convert to fraction form
   76,109.52/105,036.39 = 42,119.43/x
3. Step 3: Cross multiply
   76,109.52x = 105,036.39 × 42,119.43
4. Step 4: Simplify right side
   76,109.52x = 4,424,072,876.06
5. Step 5: Solve for x
   x = 4,424,072,876.06/76,109.52
6. Step 6: Final answer
   x = 58,127.72