Finding the Fourth Proportional to 72,292.16, 108,442.08 and 22,406.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,292.16 : 108,442.08 = 22,406.72 : x
2. Step 2: Convert to fraction form
   72,292.16/108,442.08 = 22,406.72/x
3. Step 3: Cross multiply
   72,292.16x = 108,442.08 × 22,406.72
4. Step 4: Simplify right side
   72,292.16x = 2,429,831,322.78
5. Step 5: Solve for x
   x = 2,429,831,322.78/72,292.16
6. Step 6: Final answer
   x = 33,611.27