Finding the Fourth Proportional to 78,182.07, 107,890.83 and 42,371.70

Step by Step Solution

1. Step 1: Write the proportion equation
   78,182.07 : 107,890.83 = 42,371.70 : x
2. Step 2: Convert to fraction form
   78,182.07/107,890.83 = 42,371.70/x
3. Step 3: Cross multiply
   78,182.07x = 107,890.83 × 42,371.70
4. Step 4: Simplify right side
   78,182.07x = 4,571,517,881.51
5. Step 5: Solve for x
   x = 4,571,517,881.51/78,182.07
6. Step 6: Final answer
   x = 58,472.71