Finding the Fourth Proportional to 78,890.34, 108,868.41 and 47,060.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,890.34 : 108,868.41 = 47,060.58 : x
2. Step 2: Convert to fraction form
   78,890.34/108,868.41 = 47,060.58/x
3. Step 3: Cross multiply
   78,890.34x = 108,868.41 × 47,060.58
4. Step 4: Simplify right side
   78,890.34x = 5,123,410,518.28
5. Step 5: Solve for x
   x = 5,123,410,518.28/78,890.34
6. Step 6: Final answer
   x = 64,943.45