Finding the Fourth Proportional to 115,104.67, 158,851.73 and 64,806.91

Step by Step Solution

1. Step 1: Write the proportion equation
   115,104.67 : 158,851.73 = 64,806.91 : x
2. Step 2: Convert to fraction form
   115,104.67/158,851.73 = 64,806.91/x
3. Step 3: Cross multiply
   115,104.67x = 158,851.73 × 64,806.91
4. Step 4: Simplify right side
   115,104.67x = 10,294,689,534.34
5. Step 5: Solve for x
   x = 10,294,689,534.34/115,104.67
6. Step 6: Final answer
   x = 89,437.64