Finding the Fourth Proportional to 7,875.52, 10,868.80 and 4,338.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,875.52 : 10,868.80 = 4,338.72 : x
2. Step 2: Convert to fraction form
   7,875.52/10,868.80 = 4,338.72/x
3. Step 3: Cross multiply
   7,875.52x = 10,868.80 × 4,338.72
4. Step 4: Simplify right side
   7,875.52x = 47,156,679.94
5. Step 5: Solve for x
   x = 47,156,679.94/7,875.52
6. Step 6: Final answer
   x = 5,987.75