Finding the Fourth Proportional to 78,037.20, 107,691.12 and 42,227.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,037.20 : 107,691.12 = 42,227.82 : x
2. Step 2: Convert to fraction form
   78,037.20/107,691.12 = 42,227.82/x
3. Step 3: Cross multiply
   78,037.20x = 107,691.12 × 42,227.82
4. Step 4: Simplify right side
   78,037.20x = 4,547,561,230.96
5. Step 5: Solve for x
   x = 4,547,561,230.96/78,037.20
6. Step 6: Final answer
   x = 58,274.27