Finding the Fourth Proportional to 91,244.56, 136,870.56 and 31,314.24

Step by Step Solution

1. Step 1: Write the proportion equation
   91,244.56 : 136,870.56 = 31,314.24 : x
2. Step 2: Convert to fraction form
   91,244.56/136,870.56 = 31,314.24/x
3. Step 3: Cross multiply
   91,244.56x = 136,870.56 × 31,314.24
4. Step 4: Simplify right side
   91,244.56x = 4,285,997,564.77
5. Step 5: Solve for x
   x = 4,285,997,564.77/91,244.56
6. Step 6: Final answer
   x = 46,972.64