Finding the Fourth Proportional to 72,870.87, 109,312.68 and 22,281.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,870.87 : 109,312.68 = 22,281.32 : x
2. Step 2: Convert to fraction form
   72,870.87/109,312.68 = 22,281.32/x
3. Step 3: Cross multiply
   72,870.87x = 109,312.68 × 22,281.32
4. Step 4: Simplify right side
   72,870.87x = 2,435,630,256.57
5. Step 5: Solve for x
   x = 2,435,630,256.57/72,870.87
6. Step 6: Final answer
   x = 33,423.92