Finding the Fourth Proportional to 56,796.90, 78,376.52 and 31,303.19

Step by Step Solution

1. Step 1: Write the proportion equation
   56,796.90 : 78,376.52 = 31,303.19 : x
2. Step 2: Convert to fraction form
   56,796.90/78,376.52 = 31,303.19/x
3. Step 3: Cross multiply
   56,796.90x = 78,376.52 × 31,303.19
4. Step 4: Simplify right side
   56,796.90x = 2,453,435,077.39
5. Step 5: Solve for x
   x = 2,453,435,077.39/56,796.90
6. Step 6: Final answer
   x = 43,196.64