Finding the Fourth Proportional to 73,975.56, 110,964.15 and 21,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,975.56 : 110,964.15 = 21,385.50 : x
2. Step 2: Convert to fraction form
   73,975.56/110,964.15 = 21,385.50/x
3. Step 3: Cross multiply
   73,975.56x = 110,964.15 × 21,385.50
4. Step 4: Simplify right side
   73,975.56x = 2,373,023,829.83
5. Step 5: Solve for x
   x = 2,373,023,829.83/73,975.56
6. Step 6: Final answer
   x = 32,078.48