Finding the Fourth Proportional to 61,298.30, 91,900.68 and 31,697.24

Step by Step Solution

1. Step 1: Write the proportion equation
   61,298.30 : 91,900.68 = 31,697.24 : x
2. Step 2: Convert to fraction form
   61,298.30/91,900.68 = 31,697.24/x
3. Step 3: Cross multiply
   61,298.30x = 91,900.68 × 31,697.24
4. Step 4: Simplify right side
   61,298.30x = 2,912,997,910.12
5. Step 5: Solve for x
   x = 2,912,997,910.12/61,298.30
6. Step 6: Final answer
   x = 47,521.68