Finding the Fourth Proportional to 78,374.54, 108,156.84 and 42,564.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,374.54 : 108,156.84 = 42,564.58 : x
2. Step 2: Convert to fraction form
   78,374.54/108,156.84 = 42,564.58/x
3. Step 3: Cross multiply
   78,374.54x = 108,156.84 × 42,564.58
4. Step 4: Simplify right side
   78,374.54x = 4,603,650,468.73
5. Step 5: Solve for x
   x = 4,603,650,468.73/78,374.54
6. Step 6: Final answer
   x = 58,739.11