Finding the Fourth Proportional to 103,374.51, 142,672.25 and 63,111.61

Step by Step Solution

1. Step 1: Write the proportion equation
   103,374.51 : 142,672.25 = 63,111.61 : x
2. Step 2: Convert to fraction form
   103,374.51/142,672.25 = 63,111.61/x
3. Step 3: Cross multiply
   103,374.51x = 142,672.25 × 63,111.61
4. Step 4: Simplify right side
   103,374.51x = 9,004,275,399.82
5. Step 5: Solve for x
   x = 9,004,275,399.82/103,374.51
6. Step 6: Final answer
   x = 87,103.44