Finding the Fourth Proportional to 88,196.07, 121,643.51 and 61,017.37

Step by Step Solution

1. Step 1: Write the proportion equation
   88,196.07 : 121,643.51 = 61,017.37 : x
2. Step 2: Convert to fraction form
   88,196.07/121,643.51 = 61,017.37/x
3. Step 3: Cross multiply
   88,196.07x = 121,643.51 × 61,017.37
4. Step 4: Simplify right side
   88,196.07x = 7,422,367,057.77
5. Step 5: Solve for x
   x = 7,422,367,057.77/88,196.07
6. Step 6: Final answer
   x = 84,157.57