Finding the Fourth Proportional to 76,693.47, 105,820.72 and 48,382.75

Step by Step Solution

1. Step 1: Write the proportion equation
   76,693.47 : 105,820.72 = 48,382.75 : x
2. Step 2: Convert to fraction form
   76,693.47/105,820.72 = 48,382.75/x
3. Step 3: Cross multiply
   76,693.47x = 105,820.72 × 48,382.75
4. Step 4: Simplify right side
   76,693.47x = 5,119,897,440.58
5. Step 5: Solve for x
   x = 5,119,897,440.58/76,693.47
6. Step 6: Final answer
   x = 66,757.93