Finding the Fourth Proportional to 78,106.96, 107,787 and 42,296.86

Step by Step Solution

1. Step 1: Write the proportion equation
   78,106.96 : 107,787 = 42,296.86 : x
2. Step 2: Convert to fraction form
   78,106.96/107,787 = 42,296.86/x
3. Step 3: Cross multiply
   78,106.96x = 107,787 × 42,296.86
4. Step 4: Simplify right side
   78,106.96x = 4,559,051,648.82
5. Step 5: Solve for x
   x = 4,559,051,648.82/78,106.96
6. Step 6: Final answer
   x = 58,369.34