Finding the Fourth Proportional to 49,422.96, 74,124.72 and 13,398.75

Step by Step Solution

1. Step 1: Write the proportion equation
   49,422.96 : 74,124.72 = 13,398.75 : x
2. Step 2: Convert to fraction form
   49,422.96/74,124.72 = 13,398.75/x
3. Step 3: Cross multiply
   49,422.96x = 74,124.72 × 13,398.75
4. Step 4: Simplify right side
   49,422.96x = 993,178,592.10
5. Step 5: Solve for x
   x = 993,178,592.10/49,422.96
6. Step 6: Final answer
   x = 20,095.49