Finding the Fourth Proportional to 45,859.86, 63,259.78 and 28,837.15

Step by Step Solution

1. Step 1: Write the proportion equation
   45,859.86 : 63,259.78 = 28,837.15 : x
2. Step 2: Convert to fraction form
   45,859.86/63,259.78 = 28,837.15/x
3. Step 3: Cross multiply
   45,859.86x = 63,259.78 × 28,837.15
4. Step 4: Simplify right side
   45,859.86x = 1,824,231,764.83
5. Step 5: Solve for x
   x = 1,824,231,764.83/45,859.86
6. Step 6: Final answer
   x = 39,778.40