Finding the Fourth Proportional to 98,111.52, 135,412.56 and 55,674

Step by Step Solution

1. Step 1: Write the proportion equation
   98,111.52 : 135,412.56 = 55,674 : x
2. Step 2: Convert to fraction form
   98,111.52/135,412.56 = 55,674/x
3. Step 3: Cross multiply
   98,111.52x = 135,412.56 × 55,674
4. Step 4: Simplify right side
   98,111.52x = 7,538,958,865.44
5. Step 5: Solve for x
   x = 7,538,958,865.44/98,111.52
6. Step 6: Final answer
   x = 76,840.71