Finding the Fourth Proportional to 141,569.60, 195,330.72 and 91,208

Step by Step Solution

1. Step 1: Write the proportion equation
   141,569.60 : 195,330.72 = 91,208 : x
2. Step 2: Convert to fraction form
   141,569.60/195,330.72 = 91,208/x
3. Step 3: Cross multiply
   141,569.60x = 195,330.72 × 91,208
4. Step 4: Simplify right side
   141,569.60x = 17,815,724,309.76
5. Step 5: Solve for x
   x = 17,815,724,309.76/141,569.60
6. Step 6: Final answer
   x = 125,844.28