Finding the Fourth Proportional to 35,320.56, 52,985.76 and 11,940.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,320.56 : 52,985.76 = 11,940.72 : x
2. Step 2: Convert to fraction form
   35,320.56/52,985.76 = 11,940.72/x
3. Step 3: Cross multiply
   35,320.56x = 52,985.76 × 11,940.72
4. Step 4: Simplify right side
   35,320.56x = 632,688,124.15
5. Step 5: Solve for x
   x = 632,688,124.15/35,320.56
6. Step 6: Final answer
   x = 17,912.74