Finding the Fourth Proportional to 7,885.34, 10,859.00 and 7,385.06

Step by Step Solution

1. Step 1: Write the proportion equation
   7,885.34 : 10,859.00 = 7,385.06 : x
2. Step 2: Convert to fraction form
   7,885.34/10,859.00 = 7,385.06/x
3. Step 3: Cross multiply
   7,885.34x = 10,859.00 × 7,385.06
4. Step 4: Simplify right side
   7,885.34x = 80,194,275.32
5. Step 5: Solve for x
   x = 80,194,275.32/7,885.34
6. Step 6: Final answer
   x = 10,170.05