Finding the Fourth Proportional to 52,426.50, 72,349.40 and 28,553.16

Step by Step Solution

1. Step 1: Write the proportion equation
   52,426.50 : 72,349.40 = 28,553.16 : x
2. Step 2: Convert to fraction form
   52,426.50/72,349.40 = 28,553.16/x
3. Step 3: Cross multiply
   52,426.50x = 72,349.40 × 28,553.16
4. Step 4: Simplify right side
   52,426.50x = 2,065,803,851.34
5. Step 5: Solve for x
   x = 2,065,803,851.34/52,426.50
6. Step 6: Final answer
   x = 39,403.81