Finding the Fourth Proportional to 46,123.20, 63,656.79 and 28,215.30

Step by Step Solution

1. Step 1: Write the proportion equation
   46,123.20 : 63,656.79 = 28,215.30 : x
2. Step 2: Convert to fraction form
   46,123.20/63,656.79 = 28,215.30/x
3. Step 3: Cross multiply
   46,123.20x = 63,656.79 × 28,215.30
4. Step 4: Simplify right side
   46,123.20x = 1,796,095,426.89
5. Step 5: Solve for x
   x = 1,796,095,426.89/46,123.20
6. Step 6: Final answer
   x = 38,941.26