Finding the Fourth Proportional to 78,089.04, 107,762.92 and 42,279.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,089.04 : 107,762.92 = 42,279.06 : x
2. Step 2: Convert to fraction form
   78,089.04/107,762.92 = 42,279.06/x
3. Step 3: Cross multiply
   78,089.04x = 107,762.92 × 42,279.06
4. Step 4: Simplify right side
   78,089.04x = 4,556,114,960.46
5. Step 5: Solve for x
   x = 4,556,114,960.46/78,089.04
6. Step 6: Final answer
   x = 58,345.13