Finding the Fourth Proportional to 78,484.14, 108,307.58 and 42,674.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,484.14 : 108,307.58 = 42,674.18 : x
2. Step 2: Convert to fraction form
   78,484.14/108,307.58 = 42,674.18/x
3. Step 3: Cross multiply
   78,484.14x = 108,307.58 × 42,674.18
4. Step 4: Simplify right side
   78,484.14x = 4,621,936,409.38
5. Step 5: Solve for x
   x = 4,621,936,409.38/78,484.14
6. Step 6: Final answer
   x = 58,890.07