Finding the Fourth Proportional to 115,808.84, 159,802.77 and 64,824.43

Step by Step Solution

1. Step 1: Write the proportion equation
   115,808.84 : 159,802.77 = 64,824.43 : x
2. Step 2: Convert to fraction form
   115,808.84/159,802.77 = 64,824.43/x
3. Step 3: Cross multiply
   115,808.84x = 159,802.77 × 64,824.43
4. Step 4: Simplify right side
   115,808.84x = 10,359,123,321.26
5. Step 5: Solve for x
   x = 10,359,123,321.26/115,808.84
6. Step 6: Final answer
   x = 89,450.19