Finding the Fourth Proportional to 52,961.72, 73,088.88 and 30,605.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,961.72 : 73,088.88 = 30,605.72 : x
2. Step 2: Convert to fraction form
   52,961.72/73,088.88 = 30,605.72/x
3. Step 3: Cross multiply
   52,961.72x = 73,088.88 × 30,605.72
4. Step 4: Simplify right side
   52,961.72x = 2,236,937,796.39
5. Step 5: Solve for x
   x = 2,236,937,796.39/52,961.72
6. Step 6: Final answer
   x = 42,236.88