Finding the Fourth Proportional to 62,293.89, 85,973.79 and 35,431.21

Step by Step Solution

1. Step 1: Write the proportion equation
   62,293.89 : 85,973.79 = 35,431.21 : x
2. Step 2: Convert to fraction form
   62,293.89/85,973.79 = 35,431.21/x
3. Step 3: Cross multiply
   62,293.89x = 85,973.79 × 35,431.21
4. Step 4: Simplify right side
   62,293.89x = 3,046,155,690.82
5. Step 5: Solve for x
   x = 3,046,155,690.82/62,293.89
6. Step 6: Final answer
   x = 48,899.75