Finding the Fourth Proportional to 78,112.17, 107,795.07 and 42,302.07

Step by Step Solution

1. Step 1: Write the proportion equation
   78,112.17 : 107,795.07 = 42,302.07 : x
2. Step 2: Convert to fraction form
   78,112.17/107,795.07 = 42,302.07/x
3. Step 3: Cross multiply
   78,112.17x = 107,795.07 × 42,302.07
4. Step 4: Simplify right side
   78,112.17x = 4,559,954,596.79
5. Step 5: Solve for x
   x = 4,559,954,596.79/78,112.17
6. Step 6: Final answer
   x = 58,377.01