Finding the Fourth Proportional to 52,118.53, 78,286.14 and 42,134.58

Step by Step Solution

1. Step 1: Write the proportion equation
   52,118.53 : 78,286.14 = 42,134.58 : x
2. Step 2: Convert to fraction form
   52,118.53/78,286.14 = 42,134.58/x
3. Step 3: Cross multiply
   52,118.53x = 78,286.14 × 42,134.58
4. Step 4: Simplify right side
   52,118.53x = 3,298,553,628.72
5. Step 5: Solve for x
   x = 3,298,553,628.72/52,118.53
6. Step 6: Final answer
   x = 63,289.46