Finding the Fourth Proportional to 115,554.04, 159,462.74 and 64,567.78

Step by Step Solution

1. Step 1: Write the proportion equation
   115,554.04 : 159,462.74 = 64,567.78 : x
2. Step 2: Convert to fraction form
   115,554.04/159,462.74 = 64,567.78/x
3. Step 3: Cross multiply
   115,554.04x = 159,462.74 × 64,567.78
4. Step 4: Simplify right side
   115,554.04x = 10,296,155,114.52
5. Step 5: Solve for x
   x = 10,296,155,114.52/115,554.04
6. Step 6: Final answer
   x = 89,102.51