Finding the Fourth Proportional to 5,385.57, 8,073.71 and 1,875.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,385.57 : 8,073.71 = 1,875.12 : x
2. Step 2: Convert to fraction form
   5,385.57/8,073.71 = 1,875.12/x
3. Step 3: Cross multiply
   5,385.57x = 8,073.71 × 1,875.12
4. Step 4: Simplify right side
   5,385.57x = 15,139,165.72
5. Step 5: Solve for x
   x = 15,139,165.72/5,385.57
6. Step 6: Final answer
   x = 2,811.06