Finding the Fourth Proportional to 56,884.24, 78,499.72 and 31,390.84

Step by Step Solution

1. Step 1: Write the proportion equation
   56,884.24 : 78,499.72 = 31,390.84 : x
2. Step 2: Convert to fraction form
   56,884.24/78,499.72 = 31,390.84/x
3. Step 3: Cross multiply
   56,884.24x = 78,499.72 × 31,390.84
4. Step 4: Simplify right side
   56,884.24x = 2,464,172,111.35
5. Step 5: Solve for x
   x = 2,464,172,111.35/56,884.24
6. Step 6: Final answer
   x = 43,319.06