Finding the Fourth Proportional to 78,701.03, 108,604.25 and 42,890.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,701.03 : 108,604.25 = 42,890.27 : x
2. Step 2: Convert to fraction form
   78,701.03/108,604.25 = 42,890.27/x
3. Step 3: Cross multiply
   78,701.03x = 108,604.25 × 42,890.27
4. Step 4: Simplify right side
   78,701.03x = 4,658,064,848.17
5. Step 5: Solve for x
   x = 4,658,064,848.17/78,701.03
6. Step 6: Final answer
   x = 59,186.84