Finding the Fourth Proportional to 91,085.30, 125,697.82 and 50,248.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,085.30 : 125,697.82 = 50,248.50 : x
2. Step 2: Convert to fraction form
   91,085.30/125,697.82 = 50,248.50/x
3. Step 3: Cross multiply
   91,085.30x = 125,697.82 × 50,248.50
4. Step 4: Simplify right side
   91,085.30x = 6,316,126,908.27
5. Step 5: Solve for x
   x = 6,316,126,908.27/91,085.30
6. Step 6: Final answer
   x = 69,342.99