Finding the Fourth Proportional to 78,383.88, 108,167.94 and 42,573.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,383.88 : 108,167.94 = 42,573.12 : x
2. Step 2: Convert to fraction form
   78,383.88/108,167.94 = 42,573.12/x
3. Step 3: Cross multiply
   78,383.88x = 108,167.94 × 42,573.12
4. Step 4: Simplify right side
   78,383.88x = 4,605,046,689.77
5. Step 5: Solve for x
   x = 4,605,046,689.77/78,383.88
6. Step 6: Final answer
   x = 58,749.92