Finding the Fourth Proportional to 88,073.79, 121,642.79 and 57,993.59

Step by Step Solution

1. Step 1: Write the proportion equation
   88,073.79 : 121,642.79 = 57,993.59 : x
2. Step 2: Convert to fraction form
   88,073.79/121,642.79 = 57,993.59/x
3. Step 3: Cross multiply
   88,073.79x = 121,642.79 × 57,993.59
4. Step 4: Simplify right side
   88,073.79x = 7,054,501,191.53
5. Step 5: Solve for x
   x = 7,054,501,191.53/88,073.79
6. Step 6: Final answer
   x = 80,097.62