Finding the Fourth Proportional to 78,397.02, 108,189.05 and 42,587.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,397.02 : 108,189.05 = 42,587.73 : x
2. Step 2: Convert to fraction form
   78,397.02/108,189.05 = 42,587.73/x
3. Step 3: Cross multiply
   78,397.02x = 108,189.05 × 42,587.73
4. Step 4: Simplify right side
   78,397.02x = 4,607,525,837.42
5. Step 5: Solve for x
   x = 4,607,525,837.42/78,397.02
6. Step 6: Final answer
   x = 58,771.70