Finding the Fourth Proportional to 56,813.32, 78,405.06 and 31,663

Step by Step Solution

1. Step 1: Write the proportion equation
   56,813.32 : 78,405.06 = 31,663 : x
2. Step 2: Convert to fraction form
   56,813.32/78,405.06 = 31,663/x
3. Step 3: Cross multiply
   56,813.32x = 78,405.06 × 31,663
4. Step 4: Simplify right side
   56,813.32x = 2,482,539,414.78
5. Step 5: Solve for x
   x = 2,482,539,414.78/56,813.32
6. Step 6: Final answer
   x = 43,696.43