Finding the Fourth Proportional to 105,925.20, 159,464.94 and 91,461.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,925.20 : 159,464.94 = 91,461.84 : x
2. Step 2: Convert to fraction form
   105,925.20/159,464.94 = 91,461.84/x
3. Step 3: Cross multiply
   105,925.20x = 159,464.94 × 91,461.84
4. Step 4: Simplify right side
   105,925.20x = 14,584,956,827.89
5. Step 5: Solve for x
   x = 14,584,956,827.89/105,925.20
6. Step 6: Final answer
   x = 137,691.10