Finding the Fourth Proportional to 78,437.67, 108,245.01 and 42,628.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,437.67 : 108,245.01 = 42,628.25 : x
2. Step 2: Convert to fraction form
   78,437.67/108,245.01 = 42,628.25/x
3. Step 3: Cross multiply
   78,437.67x = 108,245.01 × 42,628.25
4. Step 4: Simplify right side
   78,437.67x = 4,614,294,806.31
5. Step 5: Solve for x
   x = 4,614,294,806.31/78,437.67
6. Step 6: Final answer
   x = 58,827.54