Finding the Fourth Proportional to 78,675.03, 108,611.69 and 53,315.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,675.03 : 108,611.69 = 53,315.42 : x
2. Step 2: Convert to fraction form
   78,675.03/108,611.69 = 53,315.42/x
3. Step 3: Cross multiply
   78,675.03x = 108,611.69 × 53,315.42
4. Step 4: Simplify right side
   78,675.03x = 5,790,677,059.62
5. Step 5: Solve for x
   x = 5,790,677,059.62/78,675.03
6. Step 6: Final answer
   x = 73,602.48