Finding the Fourth Proportional to 62,903.81, 86,793 and 45,917.31

Step by Step Solution

1. Step 1: Write the proportion equation
   62,903.81 : 86,793 = 45,917.31 : x
2. Step 2: Convert to fraction form
   62,903.81/86,793 = 45,917.31/x
3. Step 3: Cross multiply
   62,903.81x = 86,793 × 45,917.31
4. Step 4: Simplify right side
   62,903.81x = 3,985,301,086.83
5. Step 5: Solve for x
   x = 3,985,301,086.83/62,903.81
6. Step 6: Final answer
   x = 63,355.48