Finding the Fourth Proportional to 86,003.01, 118,627.61 and 54,145.17

Step by Step Solution

1. Step 1: Write the proportion equation
   86,003.01 : 118,627.61 = 54,145.17 : x
2. Step 2: Convert to fraction form
   86,003.01/118,627.61 = 54,145.17/x
3. Step 3: Cross multiply
   86,003.01x = 118,627.61 × 54,145.17
4. Step 4: Simplify right side
   86,003.01x = 6,423,111,839.42
5. Step 5: Solve for x
   x = 6,423,111,839.42/86,003.01
6. Step 6: Final answer
   x = 74,684.73