Finding the Fourth Proportional to 40,870.32, 56,411.76 and 22,971.12

Step by Step Solution

1. Step 1: Write the proportion equation
   40,870.32 : 56,411.76 = 22,971.12 : x
2. Step 2: Convert to fraction form
   40,870.32/56,411.76 = 22,971.12/x
3. Step 3: Cross multiply
   40,870.32x = 56,411.76 × 22,971.12
4. Step 4: Simplify right side
   40,870.32x = 1,295,841,308.37
5. Step 5: Solve for x
   x = 1,295,841,308.37/40,870.32
6. Step 6: Final answer
   x = 31,706.17