Finding the Fourth Proportional to 91,422.73, 136,801.53 and 75,479.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,422.73 : 136,801.53 = 75,479.50 : x
2. Step 2: Convert to fraction form
   91,422.73/136,801.53 = 75,479.50/x
3. Step 3: Cross multiply
   91,422.73x = 136,801.53 × 75,479.50
4. Step 4: Simplify right side
   91,422.73x = 10,325,711,083.64
5. Step 5: Solve for x
   x = 10,325,711,083.64/91,422.73
6. Step 6: Final answer
   x = 112,944.68