Finding the Fourth Proportional to 76,112.40, 105,032.74 and 42,118.84

Step by Step Solution

1. Step 1: Write the proportion equation
   76,112.40 : 105,032.74 = 42,118.84 : x
2. Step 2: Convert to fraction form
   76,112.40/105,032.74 = 42,118.84/x
3. Step 3: Cross multiply
   76,112.40x = 105,032.74 × 42,118.84
4. Step 4: Simplify right side
   76,112.40x = 4,423,857,170.82
5. Step 5: Solve for x
   x = 4,423,857,170.82/76,112.40
6. Step 6: Final answer
   x = 58,122.69