Finding the Fourth Proportional to 78,089.00, 107,762.67 and 42,279

Step by Step Solution

1. Step 1: Write the proportion equation
   78,089.00 : 107,762.67 = 42,279 : x
2. Step 2: Convert to fraction form
   78,089.00/107,762.67 = 42,279/x
3. Step 3: Cross multiply
   78,089.00x = 107,762.67 × 42,279
4. Step 4: Simplify right side
   78,089.00x = 4,556,097,924.93
5. Step 5: Solve for x
   x = 4,556,097,924.93/78,089.00
6. Step 6: Final answer
   x = 58,344.94