Finding the Fourth Proportional to 111,588.27, 153,947.28 and 71,291.58

Step by Step Solution

1. Step 1: Write the proportion equation
   111,588.27 : 153,947.28 = 71,291.58 : x
2. Step 2: Convert to fraction form
   111,588.27/153,947.28 = 71,291.58/x
3. Step 3: Cross multiply
   111,588.27x = 153,947.28 × 71,291.58
4. Step 4: Simplify right side
   111,588.27x = 10,975,144,827.90
5. Step 5: Solve for x
   x = 10,975,144,827.90/111,588.27
6. Step 6: Final answer
   x = 98,353.93