Finding the Fourth Proportional to 52,624.90, 72,623.40 and 28,753.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,624.90 : 72,623.40 = 28,753.05 : x
2. Step 2: Convert to fraction form
   52,624.90/72,623.40 = 28,753.05/x
3. Step 3: Cross multiply
   52,624.90x = 72,623.40 × 28,753.05
4. Step 4: Simplify right side
   52,624.90x = 2,088,144,251.37
5. Step 5: Solve for x
   x = 2,088,144,251.37/52,624.90
6. Step 6: Final answer
   x = 39,679.78