Finding the Fourth Proportional to 78,137.92, 107,830.85 and 42,327.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,137.92 : 107,830.85 = 42,327.94 : x
2. Step 2: Convert to fraction form
   78,137.92/107,830.85 = 42,327.94/x
3. Step 3: Cross multiply
   78,137.92x = 107,830.85 × 42,327.94
4. Step 4: Simplify right side
   78,137.92x = 4,564,257,748.95
5. Step 5: Solve for x
   x = 4,564,257,748.95/78,137.92
6. Step 6: Final answer
   x = 58,412.84