Finding the Fourth Proportional to 60,819.08, 91,191.32 and 21,380.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,819.08 : 91,191.32 = 21,380.72 : x
2. Step 2: Convert to fraction form
   60,819.08/91,191.32 = 21,380.72/x
3. Step 3: Cross multiply
   60,819.08x = 91,191.32 × 21,380.72
4. Step 4: Simplify right side
   60,819.08x = 1,949,736,079.35
5. Step 5: Solve for x
   x = 1,949,736,079.35/60,819.08
6. Step 6: Final answer
   x = 32,057.97