Finding the Fourth Proportional to 78,222.51, 107,947.29 and 42,412.53

Step by Step Solution

1. Step 1: Write the proportion equation
   78,222.51 : 107,947.29 = 42,412.53 : x
2. Step 2: Convert to fraction form
   78,222.51/107,947.29 = 42,412.53/x
3. Step 3: Cross multiply
   78,222.51x = 107,947.29 × 42,412.53
4. Step 4: Simplify right side
   78,222.51x = 4,578,317,675.54
5. Step 5: Solve for x
   x = 4,578,317,675.54/78,222.51
6. Step 6: Final answer
   x = 58,529.41