Finding the Fourth Proportional to 118,127.80, 163,010.37 and 64,412.38

Step by Step Solution

1. Step 1: Write the proportion equation
   118,127.80 : 163,010.37 = 64,412.38 : x
2. Step 2: Convert to fraction form
   118,127.80/163,010.37 = 64,412.38/x
3. Step 3: Cross multiply
   118,127.80x = 163,010.37 × 64,412.38
4. Step 4: Simplify right side
   118,127.80x = 10,499,885,896.38
5. Step 5: Solve for x
   x = 10,499,885,896.38/118,127.80
6. Step 6: Final answer
   x = 88,885.82