Finding the Fourth Proportional to 78,948.30, 108,947.36 and 43,137.54

Step by Step Solution

1. Step 1: Write the proportion equation
   78,948.30 : 108,947.36 = 43,137.54 : x
2. Step 2: Convert to fraction form
   78,948.30/108,947.36 = 43,137.54/x
3. Step 3: Cross multiply
   78,948.30x = 108,947.36 × 43,137.54
4. Step 4: Simplify right side
   78,948.30x = 4,699,721,099.89
5. Step 5: Solve for x
   x = 4,699,721,099.89/78,948.30
6. Step 6: Final answer
   x = 59,529.10