Finding the Fourth Proportional to 78,222.01, 107,946.60 and 42,412.03

Step by Step Solution

1. Step 1: Write the proportion equation
   78,222.01 : 107,946.60 = 42,412.03 : x
2. Step 2: Convert to fraction form
   78,222.01/107,946.60 = 42,412.03/x
3. Step 3: Cross multiply
   78,222.01x = 107,946.60 × 42,412.03
4. Step 4: Simplify right side
   78,222.01x = 4,578,233,897.87
5. Step 5: Solve for x
   x = 4,578,233,897.87/78,222.01
6. Step 6: Final answer
   x = 58,528.72