Finding the Fourth Proportional to 91,419.60, 137,146.56 and 41,503.21

Step by Step Solution

1. Step 1: Write the proportion equation
   91,419.60 : 137,146.56 = 41,503.21 : x
2. Step 2: Convert to fraction form
   91,419.60/137,146.56 = 41,503.21/x
3. Step 3: Cross multiply
   91,419.60x = 137,146.56 × 41,503.21
4. Step 4: Simplify right side
   91,419.60x = 5,692,022,480.46
5. Step 5: Solve for x
   x = 5,692,022,480.46/91,419.60
6. Step 6: Final answer
   x = 62,262.61