Finding the Fourth Proportional to 78,111.99, 107,794.68 and 42,301.89

Step by Step Solution

1. Step 1: Write the proportion equation
   78,111.99 : 107,794.68 = 42,301.89 : x
2. Step 2: Convert to fraction form
   78,111.99/107,794.68 = 42,301.89/x
3. Step 3: Cross multiply
   78,111.99x = 107,794.68 × 42,301.89
4. Step 4: Simplify right side
   78,111.99x = 4,559,918,695.95
5. Step 5: Solve for x
   x = 4,559,918,695.95/78,111.99
6. Step 6: Final answer
   x = 58,376.68