Finding the Fourth Proportional to 78,338.34, 108,105.23 and 42,528.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,338.34 : 108,105.23 = 42,528.04 : x
2. Step 2: Convert to fraction form
   78,338.34/108,105.23 = 42,528.04/x
3. Step 3: Cross multiply
   78,338.34x = 108,105.23 × 42,528.04
4. Step 4: Simplify right side
   78,338.34x = 4,597,503,381.71
5. Step 5: Solve for x
   x = 4,597,503,381.71/78,338.34
6. Step 6: Final answer
   x = 58,687.78