Finding the Fourth Proportional to 56,955.58, 78,584.55 and 49,389.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,955.58 : 78,584.55 = 49,389.82 : x
2. Step 2: Convert to fraction form
   56,955.58/78,584.55 = 49,389.82/x
3. Step 3: Cross multiply
   56,955.58x = 78,584.55 × 49,389.82
4. Step 4: Simplify right side
   56,955.58x = 3,881,276,779.28
5. Step 5: Solve for x
   x = 3,881,276,779.28/56,955.58
6. Step 6: Final answer
   x = 68,145.68