Finding the Fourth Proportional to 78,056.31, 107,717.71 and 42,246.32

Step by Step Solution

1. Step 1: Write the proportion equation
   78,056.31 : 107,717.71 = 42,246.32 : x
2. Step 2: Convert to fraction form
   78,056.31/107,717.71 = 42,246.32/x
3. Step 3: Cross multiply
   78,056.31x = 107,717.71 × 42,246.32
4. Step 4: Simplify right side
   78,056.31x = 4,550,676,904.39
5. Step 5: Solve for x
   x = 4,550,676,904.39/78,056.31
6. Step 6: Final answer
   x = 58,299.92