Finding the Fourth Proportional to 61,109.73, 91,687.86 and 31,508.67

Step by Step Solution

1. Step 1: Write the proportion equation
   61,109.73 : 91,687.86 = 31,508.67 : x
2. Step 2: Convert to fraction form
   61,109.73/91,687.86 = 31,508.67/x
3. Step 3: Cross multiply
   61,109.73x = 91,687.86 × 31,508.67
4. Step 4: Simplify right side
   61,109.73x = 2,888,962,523.75
5. Step 5: Solve for x
   x = 2,888,962,523.75/61,109.73
6. Step 6: Final answer
   x = 47,275.00