Finding the Fourth Proportional to 110,985.24, 153,147.72 and 65,664.96

Step by Step Solution

1. Step 1: Write the proportion equation
   110,985.24 : 153,147.72 = 65,664.96 : x
2. Step 2: Convert to fraction form
   110,985.24/153,147.72 = 65,664.96/x
3. Step 3: Cross multiply
   110,985.24x = 153,147.72 × 65,664.96
4. Step 4: Simplify right side
   110,985.24x = 10,056,438,907.89
5. Step 5: Solve for x
   x = 10,056,438,907.89/110,985.24
6. Step 6: Final answer
   x = 90,610.60