Finding the Fourth Proportional to 62,788.77, 86,618.57 and 45,756.50

Step by Step Solution

1. Step 1: Write the proportion equation
   62,788.77 : 86,618.57 = 45,756.50 : x
2. Step 2: Convert to fraction form
   62,788.77/86,618.57 = 45,756.50/x
3. Step 3: Cross multiply
   62,788.77x = 86,618.57 × 45,756.50
4. Step 4: Simplify right side
   62,788.77x = 3,963,361,936.33
5. Step 5: Solve for x
   x = 3,963,361,936.33/62,788.77
6. Step 6: Final answer
   x = 63,122.15