Finding the Fourth Proportional to 78,106.92, 107,787.40 and 42,296.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,106.92 : 107,787.40 = 42,296.82 : x
2. Step 2: Convert to fraction form
   78,106.92/107,787.40 = 42,296.82/x
3. Step 3: Cross multiply
   78,106.92x = 107,787.40 × 42,296.82
4. Step 4: Simplify right side
   78,106.92x = 4,559,064,256.07
5. Step 5: Solve for x
   x = 4,559,064,256.07/78,106.92
6. Step 6: Final answer
   x = 58,369.53