Finding the Fourth Proportional to 102,826.37, 141,868.10 and 57,498.23

Step by Step Solution

1. Step 1: Write the proportion equation
   102,826.37 : 141,868.10 = 57,498.23 : x
2. Step 2: Convert to fraction form
   102,826.37/141,868.10 = 57,498.23/x
3. Step 3: Cross multiply
   102,826.37x = 141,868.10 × 57,498.23
4. Step 4: Simplify right side
   102,826.37x = 8,157,163,646.63
5. Step 5: Solve for x
   x = 8,157,163,646.63/102,826.37
6. Step 6: Final answer
   x = 79,329.50