Finding the Fourth Proportional to 98,091.88, 135,357.43 and 55,061.51

Step by Step Solution

1. Step 1: Write the proportion equation
   98,091.88 : 135,357.43 = 55,061.51 : x
2. Step 2: Convert to fraction form
   98,091.88/135,357.43 = 55,061.51/x
3. Step 3: Cross multiply
   98,091.88x = 135,357.43 × 55,061.51
4. Step 4: Simplify right side
   98,091.88x = 7,452,984,485.52
5. Step 5: Solve for x
   x = 7,452,984,485.52/98,091.88
6. Step 6: Final answer
   x = 75,979.63