Finding the Fourth Proportional to 78,106.86, 107,787.52 and 42,296.91

Step by Step Solution

1. Step 1: Write the proportion equation
   78,106.86 : 107,787.52 = 42,296.91 : x
2. Step 2: Convert to fraction form
   78,106.86/107,787.52 = 42,296.91/x
3. Step 3: Cross multiply
   78,106.86x = 107,787.52 × 42,296.91
4. Step 4: Simplify right side
   78,106.86x = 4,559,079,032.56
5. Step 5: Solve for x
   x = 4,559,079,032.56/78,106.86
6. Step 6: Final answer
   x = 58,369.76