Finding the Fourth Proportional to 91,415.04, 137,139.72 and 41,498.64

Step by Step Solution

1. Step 1: Write the proportion equation
   91,415.04 : 137,139.72 = 41,498.64 : x
2. Step 2: Convert to fraction form
   91,415.04/137,139.72 = 41,498.64/x
3. Step 3: Cross multiply
   91,415.04x = 137,139.72 × 41,498.64
4. Step 4: Simplify right side
   91,415.04x = 5,691,111,869.98
5. Step 5: Solve for x
   x = 5,691,111,869.98/91,415.04
6. Step 6: Final answer
   x = 62,255.75