Finding the Fourth Proportional to 73,981.42, 102,069.36 and 42,127.76

Step by Step Solution

1. Step 1: Write the proportion equation
   73,981.42 : 102,069.36 = 42,127.76 : x
2. Step 2: Convert to fraction form
   73,981.42/102,069.36 = 42,127.76/x
3. Step 3: Cross multiply
   73,981.42x = 102,069.36 × 42,127.76
4. Step 4: Simplify right side
   73,981.42x = 4,299,953,756.61
5. Step 5: Solve for x
   x = 4,299,953,756.61/73,981.42
6. Step 6: Final answer
   x = 58,122.08