Finding the Fourth Proportional to 78,034.16, 107,686.34 and 42,223.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,034.16 : 107,686.34 = 42,223.38 : x
2. Step 2: Convert to fraction form
   78,034.16/107,686.34 = 42,223.38/x
3. Step 3: Cross multiply
   78,034.16x = 107,686.34 × 42,223.38
4. Step 4: Simplify right side
   78,034.16x = 4,546,881,254.63
5. Step 5: Solve for x
   x = 4,546,881,254.63/78,034.16
6. Step 6: Final answer
   x = 58,267.83