Finding the Fourth Proportional to 52,510.16, 72,463.86 and 28,638.11

Step by Step Solution

1. Step 1: Write the proportion equation
   52,510.16 : 72,463.86 = 28,638.11 : x
2. Step 2: Convert to fraction form
   52,510.16/72,463.86 = 28,638.11/x
3. Step 3: Cross multiply
   52,510.16x = 72,463.86 × 28,638.11
4. Step 4: Simplify right side
   52,510.16x = 2,075,227,631.39
5. Step 5: Solve for x
   x = 2,075,227,631.39/52,510.16
6. Step 6: Final answer
   x = 39,520.50