Finding the Fourth Proportional to 56,587.41, 78,096.56 and 31,436.91

Step by Step Solution

1. Step 1: Write the proportion equation
   56,587.41 : 78,096.56 = 31,436.91 : x
2. Step 2: Convert to fraction form
   56,587.41/78,096.56 = 31,436.91/x
3. Step 3: Cross multiply
   56,587.41x = 78,096.56 × 31,436.91
4. Step 4: Simplify right side
   56,587.41x = 2,455,114,528.03
5. Step 5: Solve for x
   x = 2,455,114,528.03/56,587.41
6. Step 6: Final answer
   x = 43,386.23