Finding the Fourth Proportional to 52,263.90, 72,123.82 and 28,390.37

Step by Step Solution

1. Step 1: Write the proportion equation
   52,263.90 : 72,123.82 = 28,390.37 : x
2. Step 2: Convert to fraction form
   52,263.90/72,123.82 = 28,390.37/x
3. Step 3: Cross multiply
   52,263.90x = 72,123.82 × 28,390.37
4. Step 4: Simplify right side
   52,263.90x = 2,047,621,504.02
5. Step 5: Solve for x
   x = 2,047,621,504.02/52,263.90
6. Step 6: Final answer
   x = 39,178.51