Finding the Fourth Proportional to 28,862.32, 43,179.60 and 21,862.52

Step by Step Solution

1. Step 1: Write the proportion equation
   28,862.32 : 43,179.60 = 21,862.52 : x
2. Step 2: Convert to fraction form
   28,862.32/43,179.60 = 21,862.52/x
3. Step 3: Cross multiply
   28,862.32x = 43,179.60 × 21,862.52
4. Step 4: Simplify right side
   28,862.32x = 944,014,868.59
5. Step 5: Solve for x
   x = 944,014,868.59/28,862.32
6. Step 6: Final answer
   x = 32,707.52