Finding the Fourth Proportional to 70,581.59, 105,778.93 and 51,773.56

Step by Step Solution

1. Step 1: Write the proportion equation
   70,581.59 : 105,778.93 = 51,773.56 : x
2. Step 2: Convert to fraction form
   70,581.59/105,778.93 = 51,773.56/x
3. Step 3: Cross multiply
   70,581.59x = 105,778.93 × 51,773.56
4. Step 4: Simplify right side
   70,581.59x = 5,476,551,779.09
5. Step 5: Solve for x
   x = 5,476,551,779.09/70,581.59
6. Step 6: Final answer
   x = 77,591.79