Finding the Fourth Proportional to 111,185.94, 153,461.81 and 86,938.93

Step by Step Solution

1. Step 1: Write the proportion equation
   111,185.94 : 153,461.81 = 86,938.93 : x
2. Step 2: Convert to fraction form
   111,185.94/153,461.81 = 86,938.93/x
3. Step 3: Cross multiply
   111,185.94x = 153,461.81 × 86,938.93
4. Step 4: Simplify right side
   111,185.94x = 13,341,805,557.26
5. Step 5: Solve for x
   x = 13,341,805,557.26/111,185.94
6. Step 6: Final answer
   x = 119,995.44