Finding the Fourth Proportional to 52,656.78, 72,666.09 and 28,784.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,656.78 : 72,666.09 = 28,784.82 : x
2. Step 2: Convert to fraction form
   52,656.78/72,666.09 = 28,784.82/x
3. Step 3: Cross multiply
   52,656.78x = 72,666.09 × 28,784.82
4. Step 4: Simplify right side
   52,656.78x = 2,091,680,320.75
5. Step 5: Solve for x
   x = 2,091,680,320.75/52,656.78
6. Step 6: Final answer
   x = 39,722.91