Finding the Fourth Proportional to 148,751.51, 205,313.54 and 91,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   148,751.51 : 205,313.54 = 91,404.72 : x
2. Step 2: Convert to fraction form
   148,751.51/205,313.54 = 91,404.72/x
3. Step 3: Cross multiply
   148,751.51x = 205,313.54 × 91,404.72
4. Step 4: Simplify right side
   148,751.51x = 18,766,626,178.89
5. Step 5: Solve for x
   x = 18,766,626,178.89/148,751.51
6. Step 6: Final answer
   x = 126,160.92