Finding the Fourth Proportional to 91,498.02, 137,255.94 and 28,315.59

Step by Step Solution

1. Step 1: Write the proportion equation
   91,498.02 : 137,255.94 = 28,315.59 : x
2. Step 2: Convert to fraction form
   91,498.02/137,255.94 = 28,315.59/x
3. Step 3: Cross multiply
   91,498.02x = 137,255.94 × 28,315.59
4. Step 4: Simplify right side
   91,498.02x = 3,886,482,922.10
5. Step 5: Solve for x
   x = 3,886,482,922.10/91,498.02
6. Step 6: Final answer
   x = 42,476.14