Finding the Fourth Proportional to 78,659.94, 108,547.98 and 42,849.03

Step by Step Solution

1. Step 1: Write the proportion equation
   78,659.94 : 108,547.98 = 42,849.03 : x
2. Step 2: Convert to fraction form
   78,659.94/108,547.98 = 42,849.03/x
3. Step 3: Cross multiply
   78,659.94x = 108,547.98 × 42,849.03
4. Step 4: Simplify right side
   78,659.94x = 4,651,175,651.46
5. Step 5: Solve for x
   x = 4,651,175,651.46/78,659.94
6. Step 6: Final answer
   x = 59,130.17