Finding the Fourth Proportional to 61,199.37, 84,431.89 and 45,105.09

Step by Step Solution

1. Step 1: Write the proportion equation
   61,199.37 : 84,431.89 = 45,105.09 : x
2. Step 2: Convert to fraction form
   61,199.37/84,431.89 = 45,105.09/x
3. Step 3: Cross multiply
   61,199.37x = 84,431.89 × 45,105.09
4. Step 4: Simplify right side
   61,199.37x = 3,808,307,997.32
5. Step 5: Solve for x
   x = 3,808,307,997.32/61,199.37
6. Step 6: Final answer
   x = 62,227.90