Finding the Fourth Proportional to 91,085.94, 136,671.12 and 34,907.28

Step by Step Solution

1. Step 1: Write the proportion equation
   91,085.94 : 136,671.12 = 34,907.28 : x
2. Step 2: Convert to fraction form
   91,085.94/136,671.12 = 34,907.28/x
3. Step 3: Cross multiply
   91,085.94x = 136,671.12 × 34,907.28
4. Step 4: Simplify right side
   91,085.94x = 4,770,817,053.75
5. Step 5: Solve for x
   x = 4,770,817,053.75/91,085.94
6. Step 6: Final answer
   x = 52,377.10