Finding the Fourth Proportional to 52,619.22, 72,614.78 and 28,746.29

Step by Step Solution

1. Step 1: Write the proportion equation
   52,619.22 : 72,614.78 = 28,746.29 : x
2. Step 2: Convert to fraction form
   52,619.22/72,614.78 = 28,746.29/x
3. Step 3: Cross multiply
   52,619.22x = 72,614.78 × 28,746.29
4. Step 4: Simplify right side
   52,619.22x = 2,087,405,669.77
5. Step 5: Solve for x
   x = 2,087,405,669.77/52,619.22
6. Step 6: Final answer
   x = 39,670.02