Finding the Fourth Proportional to 52,710.80, 72,741.56 and 28,837.86

Step by Step Solution

1. Step 1: Write the proportion equation
   52,710.80 : 72,741.56 = 28,837.86 : x
2. Step 2: Convert to fraction form
   52,710.80/72,741.56 = 28,837.86/x
3. Step 3: Cross multiply
   52,710.80x = 72,741.56 × 28,837.86
4. Step 4: Simplify right side
   52,710.80x = 2,097,710,779.27
5. Step 5: Solve for x
   x = 2,097,710,779.27/52,710.80
6. Step 6: Final answer
   x = 39,796.61