Finding the Fourth Proportional to 49,499.52, 74,086.20 and 42,656.64

Step by Step Solution

1. Step 1: Write the proportion equation
   49,499.52 : 74,086.20 = 42,656.64 : x
2. Step 2: Convert to fraction form
   49,499.52/74,086.20 = 42,656.64/x
3. Step 3: Cross multiply
   49,499.52x = 74,086.20 × 42,656.64
4. Step 4: Simplify right side
   49,499.52x = 3,160,268,362.37
5. Step 5: Solve for x
   x = 3,160,268,362.37/49,499.52
6. Step 6: Final answer
   x = 63,844.42