Finding the Fourth Proportional to 62,903.31, 86,769.71 and 40,234.03

Step by Step Solution

1. Step 1: Write the proportion equation
   62,903.31 : 86,769.71 = 40,234.03 : x
2. Step 2: Convert to fraction form
   62,903.31/86,769.71 = 40,234.03/x
3. Step 3: Cross multiply
   62,903.31x = 86,769.71 × 40,234.03
4. Step 4: Simplify right side
   62,903.31x = 3,491,095,115.23
5. Step 5: Solve for x
   x = 3,491,095,115.23/62,903.31
6. Step 6: Final answer
   x = 55,499.39