Finding the Fourth Proportional to 118,615.82, 163,688.33 and 64,900.06

Step by Step Solution

1. Step 1: Write the proportion equation
   118,615.82 : 163,688.33 = 64,900.06 : x
2. Step 2: Convert to fraction form
   118,615.82/163,688.33 = 64,900.06/x
3. Step 3: Cross multiply
   118,615.82x = 163,688.33 × 64,900.06
4. Step 4: Simplify right side
   118,615.82x = 10,623,382,438.30
5. Step 5: Solve for x
   x = 10,623,382,438.30/118,615.82
6. Step 6: Final answer
   x = 89,561.26