Finding the Fourth Proportional to 78,243.34, 107,975.86 and 42,433.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,243.34 : 107,975.86 = 42,433.34 : x
2. Step 2: Convert to fraction form
   78,243.34/107,975.86 = 42,433.34/x
3. Step 3: Cross multiply
   78,243.34x = 107,975.86 × 42,433.34
4. Step 4: Simplify right side
   78,243.34x = 4,581,776,379.17
5. Step 5: Solve for x
   x = 4,581,776,379.17/78,243.34
6. Step 6: Final answer
   x = 58,558.04