Finding the Fourth Proportional to 52,290.86, 72,159.39 and 28,417.01

Step by Step Solution

1. Step 1: Write the proportion equation
   52,290.86 : 72,159.39 = 28,417.01 : x
2. Step 2: Convert to fraction form
   52,290.86/72,159.39 = 28,417.01/x
3. Step 3: Cross multiply
   52,290.86x = 72,159.39 × 28,417.01
4. Step 4: Simplify right side
   52,290.86x = 2,050,553,746.43
5. Step 5: Solve for x
   x = 2,050,553,746.43/52,290.86
6. Step 6: Final answer
   x = 39,214.39