Finding the Fourth Proportional to 61,404.66, 91,628.10 and 54,785.34

Step by Step Solution

1. Step 1: Write the proportion equation
   61,404.66 : 91,628.10 = 54,785.34 : x
2. Step 2: Convert to fraction form
   61,404.66/91,628.10 = 54,785.34/x
3. Step 3: Cross multiply
   61,404.66x = 91,628.10 × 54,785.34
4. Step 4: Simplify right side
   61,404.66x = 5,019,876,612.05
5. Step 5: Solve for x
   x = 5,019,876,612.05/61,404.66
6. Step 6: Final answer
   x = 81,750.74