Finding the Fourth Proportional to 52,025.60, 71,795.76 and 30,528.20

Step by Step Solution

1. Step 1: Write the proportion equation
   52,025.60 : 71,795.76 = 30,528.20 : x
2. Step 2: Convert to fraction form
   52,025.60/71,795.76 = 30,528.20/x
3. Step 3: Cross multiply
   52,025.60x = 71,795.76 × 30,528.20
4. Step 4: Simplify right side
   52,025.60x = 2,191,795,320.43
5. Step 5: Solve for x
   x = 2,191,795,320.43/52,025.60
6. Step 6: Final answer
   x = 42,129.17