Finding the Fourth Proportional to 107,105.15, 147,771.33 and 61,777.05

Step by Step Solution

1. Step 1: Write the proportion equation
   107,105.15 : 147,771.33 = 61,777.05 : x
2. Step 2: Convert to fraction form
   107,105.15/147,771.33 = 61,777.05/x
3. Step 3: Cross multiply
   107,105.15x = 147,771.33 × 61,777.05
4. Step 4: Simplify right side
   107,105.15x = 9,128,876,610.31
5. Step 5: Solve for x
   x = 9,128,876,610.31/107,105.15
6. Step 6: Final answer
   x = 85,232.85