Finding the Fourth Proportional to 76,097.31, 105,056.52 and 45,890.28

Step by Step Solution

1. Step 1: Write the proportion equation
   76,097.31 : 105,056.52 = 45,890.28 : x
2. Step 2: Convert to fraction form
   76,097.31/105,056.52 = 45,890.28/x
3. Step 3: Cross multiply
   76,097.31x = 105,056.52 × 45,890.28
4. Step 4: Simplify right side
   76,097.31x = 4,821,073,118.63
5. Step 5: Solve for x
   x = 4,821,073,118.63/76,097.31
6. Step 6: Final answer
   x = 63,354.05