Finding the Fourth Proportional to 52,837.30, 72,914.88 and 28,963.90

Step by Step Solution

1. Step 1: Write the proportion equation
   52,837.30 : 72,914.88 = 28,963.90 : x
2. Step 2: Convert to fraction form
   52,837.30/72,914.88 = 28,963.90/x
3. Step 3: Cross multiply
   52,837.30x = 72,914.88 × 28,963.90
4. Step 4: Simplify right side
   52,837.30x = 2,111,899,292.83
5. Step 5: Solve for x
   x = 2,111,899,292.83/52,837.30
6. Step 6: Final answer
   x = 39,969.86