Finding the Fourth Proportional to 78,674.03, 108,570.16 and 42,864.03

Step by Step Solution

1. Step 1: Write the proportion equation
   78,674.03 : 108,570.16 = 42,864.03 : x
2. Step 2: Convert to fraction form
   78,674.03/108,570.16 = 42,864.03/x
3. Step 3: Cross multiply
   78,674.03x = 108,570.16 × 42,864.03
4. Step 4: Simplify right side
   78,674.03x = 4,653,754,973.93
5. Step 5: Solve for x
   x = 4,653,754,973.93/78,674.03
6. Step 6: Final answer
   x = 59,152.36