Finding the Fourth Proportional to 111,394.49, 153,784.10 and 86,032.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,394.49 : 153,784.10 = 86,032.10 : x
2. Step 2: Convert to fraction form
   111,394.49/153,784.10 = 86,032.10/x
3. Step 3: Cross multiply
   111,394.49x = 153,784.10 × 86,032.10
4. Step 4: Simplify right side
   111,394.49x = 13,230,369,669.15
5. Step 5: Solve for x
   x = 13,230,369,669.15/111,394.49
6. Step 6: Final answer
   x = 118,770.42