Finding the Fourth Proportional to 78,321.69, 108,081.04 and 42,510.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,321.69 : 108,081.04 = 42,510.94 : x
2. Step 2: Convert to fraction form
   78,321.69/108,081.04 = 42,510.94/x
3. Step 3: Cross multiply
   78,321.69x = 108,081.04 × 42,510.94
4. Step 4: Simplify right side
   78,321.69x = 4,594,626,606.58
5. Step 5: Solve for x
   x = 4,594,626,606.58/78,321.69
6. Step 6: Final answer
   x = 58,663.53