Finding the Fourth Proportional to 61,146.39, 91,719.72 and 16,773.78

Step by Step Solution

1. Step 1: Write the proportion equation
   61,146.39 : 91,719.72 = 16,773.78 : x
2. Step 2: Convert to fraction form
   61,146.39/91,719.72 = 16,773.78/x
3. Step 3: Cross multiply
   61,146.39x = 91,719.72 × 16,773.78
4. Step 4: Simplify right side
   61,146.39x = 1,538,486,404.94
5. Step 5: Solve for x
   x = 1,538,486,404.94/61,146.39
6. Step 6: Final answer
   x = 25,160.71