Finding the Fourth Proportional to 28,063.38, 42,115.86 and 13,276.83

Step by Step Solution

1. Step 1: Write the proportion equation
   28,063.38 : 42,115.86 = 13,276.83 : x
2. Step 2: Convert to fraction form
   28,063.38/42,115.86 = 13,276.83/x
3. Step 3: Cross multiply
   28,063.38x = 42,115.86 × 13,276.83
4. Step 4: Simplify right side
   28,063.38x = 559,165,113.52
5. Step 5: Solve for x
   x = 559,165,113.52/28,063.38
6. Step 6: Final answer
   x = 19,925.08