Finding the Fourth Proportional to 78,533.61, 108,376.28 and 42,723.53

Step by Step Solution

1. Step 1: Write the proportion equation
   78,533.61 : 108,376.28 = 42,723.53 : x
2. Step 2: Convert to fraction form
   78,533.61/108,376.28 = 42,723.53/x
3. Step 3: Cross multiply
   78,533.61x = 108,376.28 × 42,723.53
4. Step 4: Simplify right side
   78,533.61x = 4,630,216,494.37
5. Step 5: Solve for x
   x = 4,630,216,494.37/78,533.61
6. Step 6: Final answer
   x = 58,958.41