Finding the Fourth Proportional to 64,365.84, 88,806.86 and 50,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,365.84 : 88,806.86 = 50,711.50 : x
2. Step 2: Convert to fraction form
   64,365.84/88,806.86 = 50,711.50/x
3. Step 3: Cross multiply
   64,365.84x = 88,806.86 × 50,711.50
4. Step 4: Simplify right side
   64,365.84x = 4,503,529,080.89
5. Step 5: Solve for x
   x = 4,503,529,080.89/64,365.84
6. Step 6: Final answer
   x = 69,967.69