Finding the Fourth Proportional to 175,720.29, 263,688.72 and 69,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   175,720.29 : 263,688.72 = 69,085.50 : x
2. Step 2: Convert to fraction form
   175,720.29/263,688.72 = 69,085.50/x
3. Step 3: Cross multiply
   175,720.29x = 263,688.72 × 69,085.50
4. Step 4: Simplify right side
   175,720.29x = 18,217,067,065.56
5. Step 5: Solve for x
   x = 18,217,067,065.56/175,720.29
6. Step 6: Final answer
   x = 103,670.82