Finding the Fourth Proportional to 56,883.15, 78,498.69 and 31,389.51

Step by Step Solution

1. Step 1: Write the proportion equation
   56,883.15 : 78,498.69 = 31,389.51 : x
2. Step 2: Convert to fraction form
   56,883.15/78,498.69 = 31,389.51/x
3. Step 3: Cross multiply
   56,883.15x = 78,498.69 × 31,389.51
4. Step 4: Simplify right side
   56,883.15x = 2,464,035,414.74
5. Step 5: Solve for x
   x = 2,464,035,414.74/56,883.15
6. Step 6: Final answer
   x = 43,317.49