Finding the Fourth Proportional to 111,523.12, 153,850.57 and 71,216.71

Step by Step Solution

1. Step 1: Write the proportion equation
   111,523.12 : 153,850.57 = 71,216.71 : x
2. Step 2: Convert to fraction form
   111,523.12/153,850.57 = 71,216.71/x
3. Step 3: Cross multiply
   111,523.12x = 153,850.57 × 71,216.71
4. Step 4: Simplify right side
   111,523.12x = 10,956,731,427.02
5. Step 5: Solve for x
   x = 10,956,731,427.02/111,523.12
6. Step 6: Final answer
   x = 98,246.28