Finding the Fourth Proportional to 52,280.21, 72,152.91 and 31,059.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,280.21 : 72,152.91 = 31,059.56 : x
2. Step 2: Convert to fraction form
   52,280.21/72,152.91 = 31,059.56/x
3. Step 3: Cross multiply
   52,280.21x = 72,152.91 × 31,059.56
4. Step 4: Simplify right side
   52,280.21x = 2,241,037,817.70
5. Step 5: Solve for x
   x = 2,241,037,817.70/52,280.21
6. Step 6: Final answer
   x = 42,865.89