Finding the Fourth Proportional to 42,366.57, 63,449.63 and 36,789.61

Step by Step Solution

1. Step 1: Write the proportion equation
   42,366.57 : 63,449.63 = 36,789.61 : x
2. Step 2: Convert to fraction form
   42,366.57/63,449.63 = 36,789.61/x
3. Step 3: Cross multiply
   42,366.57x = 63,449.63 × 36,789.61
4. Step 4: Simplify right side
   42,366.57x = 2,334,287,142.34
5. Step 5: Solve for x
   x = 2,334,287,142.34/42,366.57
6. Step 6: Final answer
   x = 55,097.38