Finding the Fourth Proportional to 52,548.30, 72,516.86 and 28,675.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,548.30 : 72,516.86 = 28,675.50 : x
2. Step 2: Convert to fraction form
   52,548.30/72,516.86 = 28,675.50/x
3. Step 3: Cross multiply
   52,548.30x = 72,516.86 × 28,675.50
4. Step 4: Simplify right side
   52,548.30x = 2,079,457,075.55
5. Step 5: Solve for x
   x = 2,079,457,075.55/52,548.30
6. Step 6: Final answer
   x = 39,572.30