Finding the Fourth Proportional to 52,541.21, 72,506.12 and 28,667.40

Step by Step Solution

1. Step 1: Write the proportion equation
   52,541.21 : 72,506.12 = 28,667.40 : x
2. Step 2: Convert to fraction form
   52,541.21/72,506.12 = 28,667.40/x
3. Step 3: Cross multiply
   52,541.21x = 72,506.12 × 28,667.40
4. Step 4: Simplify right side
   52,541.21x = 2,078,561,801.15
5. Step 5: Solve for x
   x = 2,078,561,801.15/52,541.21
6. Step 6: Final answer
   x = 39,560.60