Finding the Fourth Proportional to 22,479.39, 31,025.30 and 21,482.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,479.39 : 31,025.30 = 21,482.91 : x
2. Step 2: Convert to fraction form
   22,479.39/31,025.30 = 21,482.91/x
3. Step 3: Cross multiply
   22,479.39x = 31,025.30 × 21,482.91
4. Step 4: Simplify right side
   22,479.39x = 666,513,620.21
5. Step 5: Solve for x
   x = 666,513,620.21/22,479.39
6. Step 6: Final answer
   x = 29,649.99