Finding the Fourth Proportional to 106,019.28, 158,899.42 and 49,784.32

Step by Step Solution

1. Step 1: Write the proportion equation
   106,019.28 : 158,899.42 = 49,784.32 : x
2. Step 2: Convert to fraction form
   106,019.28/158,899.42 = 49,784.32/x
3. Step 3: Cross multiply
   106,019.28x = 158,899.42 × 49,784.32
4. Step 4: Simplify right side
   106,019.28x = 7,910,699,833.95
5. Step 5: Solve for x
   x = 7,910,699,833.95/106,019.28
6. Step 6: Final answer
   x = 74,615.67