Finding the Fourth Proportional to 34,935.12, 52,394.04 and 21,780.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,935.12 : 52,394.04 = 21,780.72 : x
2. Step 2: Convert to fraction form
   34,935.12/52,394.04 = 21,780.72/x
3. Step 3: Cross multiply
   34,935.12x = 52,394.04 × 21,780.72
4. Step 4: Simplify right side
   34,935.12x = 1,141,179,914.91
5. Step 5: Solve for x
   x = 1,141,179,914.91/34,935.12
6. Step 6: Final answer
   x = 32,665.69