Finding the Fourth Proportional to 78,750.43, 108,675.32 and 42,940.35

Step by Step Solution

1. Step 1: Write the proportion equation
   78,750.43 : 108,675.32 = 42,940.35 : x
2. Step 2: Convert to fraction form
   78,750.43/108,675.32 = 42,940.35/x
3. Step 3: Cross multiply
   78,750.43x = 108,675.32 × 42,940.35
4. Step 4: Simplify right side
   78,750.43x = 4,666,556,062.46
5. Step 5: Solve for x
   x = 4,666,556,062.46/78,750.43
6. Step 6: Final answer
   x = 59,257.53