Finding the Fourth Proportional to 52,711.35, 72,742.20 and 28,837.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,711.35 : 72,742.20 = 28,837.50 : x
2. Step 2: Convert to fraction form
   52,711.35/72,742.20 = 28,837.50/x
3. Step 3: Cross multiply
   52,711.35x = 72,742.20 × 28,837.50
4. Step 4: Simplify right side
   52,711.35x = 2,097,703,192.50
5. Step 5: Solve for x
   x = 2,097,703,192.50/52,711.35
6. Step 6: Final answer
   x = 39,796.04