Finding the Fourth Proportional to 78,710.51, 108,622.81 and 42,902.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,710.51 : 108,622.81 = 42,902.84 : x
2. Step 2: Convert to fraction form
   78,710.51/108,622.81 = 42,902.84/x
3. Step 3: Cross multiply
   78,710.51x = 108,622.81 × 42,902.84
4. Step 4: Simplify right side
   78,710.51x = 4,660,227,037.78
5. Step 5: Solve for x
   x = 4,660,227,037.78/78,710.51
6. Step 6: Final answer
   x = 59,207.18