Finding the Fourth Proportional to 56,991.96, 78,648.76 and 31,841.46

Step by Step Solution

1. Step 1: Write the proportion equation
   56,991.96 : 78,648.76 = 31,841.46 : x
2. Step 2: Convert to fraction form
   56,991.96/78,648.76 = 31,841.46/x
3. Step 3: Cross multiply
   56,991.96x = 78,648.76 × 31,841.46
4. Step 4: Simplify right side
   56,991.96x = 2,504,291,345.59
5. Step 5: Solve for x
   x = 2,504,291,345.59/56,991.96
6. Step 6: Final answer
   x = 43,941.13