Finding the Fourth Proportional to 91,016.99, 136,503.60 and 46,620.89

Step by Step Solution

1. Step 1: Write the proportion equation
   91,016.99 : 136,503.60 = 46,620.89 : x
2. Step 2: Convert to fraction form
   91,016.99/136,503.60 = 46,620.89/x
3. Step 3: Cross multiply
   91,016.99x = 136,503.60 × 46,620.89
4. Step 4: Simplify right side
   91,016.99x = 6,363,918,637.69
5. Step 5: Solve for x
   x = 6,363,918,637.69/91,016.99
6. Step 6: Final answer
   x = 69,920.12