Finding the Fourth Proportional to 78,561.16, 108,416.68 and 42,753.47

Step by Step Solution

1. Step 1: Write the proportion equation
   78,561.16 : 108,416.68 = 42,753.47 : x
2. Step 2: Convert to fraction form
   78,561.16/108,416.68 = 42,753.47/x
3. Step 3: Cross multiply
   78,561.16x = 108,416.68 × 42,753.47
4. Step 4: Simplify right side
   78,561.16x = 4,635,189,236.76
5. Step 5: Solve for x
   x = 4,635,189,236.76/78,561.16
6. Step 6: Final answer
   x = 59,001.03