Finding the Fourth Proportional to 64,686.89, 89,235.24 and 37,811.84

Step by Step Solution

1. Step 1: Write the proportion equation
   64,686.89 : 89,235.24 = 37,811.84 : x
2. Step 2: Convert to fraction form
   64,686.89/89,235.24 = 37,811.84/x
3. Step 3: Cross multiply
   64,686.89x = 89,235.24 × 37,811.84
4. Step 4: Simplify right side
   64,686.89x = 3,374,148,171.07
5. Step 5: Solve for x
   x = 3,374,148,171.07/64,686.89
6. Step 6: Final answer
   x = 52,161.24