Finding the Fourth Proportional to 78,223.04, 107,948.28 and 42,412.74

Step by Step Solution

1. Step 1: Write the proportion equation
   78,223.04 : 107,948.28 = 42,412.74 : x
2. Step 2: Convert to fraction form
   78,223.04/107,948.28 = 42,412.74/x
3. Step 3: Cross multiply
   78,223.04x = 107,948.28 × 42,412.74
4. Step 4: Simplify right side
   78,223.04x = 4,578,382,333.09
5. Step 5: Solve for x
   x = 4,578,382,333.09/78,223.04
6. Step 6: Final answer
   x = 58,529.84