Finding the Fourth Proportional to 67,868.21, 101,819.61 and 47,916.57

Step by Step Solution

1. Step 1: Write the proportion equation
   67,868.21 : 101,819.61 = 47,916.57 : x
2. Step 2: Convert to fraction form
   67,868.21/101,819.61 = 47,916.57/x
3. Step 3: Cross multiply
   67,868.21x = 101,819.61 × 47,916.57
4. Step 4: Simplify right side
   67,868.21x = 4,878,846,279.03
5. Step 5: Solve for x
   x = 4,878,846,279.03/67,868.21
6. Step 6: Final answer
   x = 71,887.06