Finding the Fourth Proportional to 49,987.56, 74,979.72 and 13,051.56

Step by Step Solution

1. Step 1: Write the proportion equation
   49,987.56 : 74,979.72 = 13,051.56 : x
2. Step 2: Convert to fraction form
   49,987.56/74,979.72 = 13,051.56/x
3. Step 3: Cross multiply
   49,987.56x = 74,979.72 × 13,051.56
4. Step 4: Simplify right side
   49,987.56x = 978,602,314.36
5. Step 5: Solve for x
   x = 978,602,314.36/49,987.56
6. Step 6: Final answer
   x = 19,576.92