Finding the Fourth Proportional to 91,468.24, 137,168.25 and 31,479.95

Step by Step Solution

1. Step 1: Write the proportion equation
   91,468.24 : 137,168.25 = 31,479.95 : x
2. Step 2: Convert to fraction form
   91,468.24/137,168.25 = 31,479.95/x
3. Step 3: Cross multiply
   91,468.24x = 137,168.25 × 31,479.95
4. Step 4: Simplify right side
   91,468.24x = 4,318,049,994.51
5. Step 5: Solve for x
   x = 4,318,049,994.51/91,468.24
6. Step 6: Final answer
   x = 47,208.19