Finding the Fourth Proportional to 73,984.76, 102,093.70 and 42,147.80

Step by Step Solution

1. Step 1: Write the proportion equation
   73,984.76 : 102,093.70 = 42,147.80 : x
2. Step 2: Convert to fraction form
   73,984.76/102,093.70 = 42,147.80/x
3. Step 3: Cross multiply
   73,984.76x = 102,093.70 × 42,147.80
4. Step 4: Simplify right side
   73,984.76x = 4,303,024,848.86
5. Step 5: Solve for x
   x = 4,303,024,848.86/73,984.76
6. Step 6: Final answer
   x = 58,160.96