Finding the Fourth Proportional to 78,111.69, 107,794.17 and 42,301.86

Step by Step Solution

1. Step 1: Write the proportion equation
   78,111.69 : 107,794.17 = 42,301.86 : x
2. Step 2: Convert to fraction form
   78,111.69/107,794.17 = 42,301.86/x
3. Step 3: Cross multiply
   78,111.69x = 107,794.17 × 42,301.86
4. Step 4: Simplify right side
   78,111.69x = 4,559,893,888.16
5. Step 5: Solve for x
   x = 4,559,893,888.16/78,111.69
6. Step 6: Final answer
   x = 58,376.59