Finding the Fourth Proportional to 78,134.55, 107,826.20 and 42,324.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,134.55 : 107,826.20 = 42,324.56 : x
2. Step 2: Convert to fraction form
   78,134.55/107,826.20 = 42,324.56/x
3. Step 3: Cross multiply
   78,134.55x = 107,826.20 × 42,324.56
4. Step 4: Simplify right side
   78,134.55x = 4,563,696,125.07
5. Step 5: Solve for x
   x = 4,563,696,125.07/78,134.55
6. Step 6: Final answer
   x = 58,408.17