Finding the Fourth Proportional to 78,614.65, 108,485.76 and 42,804.43

Step by Step Solution

1. Step 1: Write the proportion equation
   78,614.65 : 108,485.76 = 42,804.43 : x
2. Step 2: Convert to fraction form
   78,614.65/108,485.76 = 42,804.43/x
3. Step 3: Cross multiply
   78,614.65x = 108,485.76 × 42,804.43
4. Step 4: Simplify right side
   78,614.65x = 4,643,671,119.92
5. Step 5: Solve for x
   x = 4,643,671,119.92/78,614.65
6. Step 6: Final answer
   x = 59,068.78