Finding the Fourth Proportional to 52,428.17, 72,351.70 and 28,554.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,428.17 : 72,351.70 = 28,554.82 : x
2. Step 2: Convert to fraction form
   52,428.17/72,351.70 = 28,554.82/x
3. Step 3: Cross multiply
   52,428.17x = 72,351.70 × 28,554.82
4. Step 4: Simplify right side
   52,428.17x = 2,065,989,517.93
5. Step 5: Solve for x
   x = 2,065,989,517.93/52,428.17
6. Step 6: Final answer
   x = 39,406.09