Finding the Fourth Proportional to 78,010.50, 107,654.76 and 42,200.67

Step by Step Solution

1. Step 1: Write the proportion equation
   78,010.50 : 107,654.76 = 42,200.67 : x
2. Step 2: Convert to fraction form
   78,010.50/107,654.76 = 42,200.67/x
3. Step 3: Cross multiply
   78,010.50x = 107,654.76 × 42,200.67
4. Step 4: Simplify right side
   78,010.50x = 4,543,103,000.69
5. Step 5: Solve for x
   x = 4,543,103,000.69/78,010.50
6. Step 6: Final answer
   x = 58,237.07