Finding the Fourth Proportional to 279,092.42, 418,607.50 and 76,704.04

Step by Step Solution

1. Step 1: Write the proportion equation
   279,092.42 : 418,607.50 = 76,704.04 : x
2. Step 2: Convert to fraction form
   279,092.42/418,607.50 = 76,704.04/x
3. Step 3: Cross multiply
   279,092.42x = 418,607.50 × 76,704.04
4. Step 4: Simplify right side
   279,092.42x = 32,108,886,424.30
5. Step 5: Solve for x
   x = 32,108,886,424.30/279,092.42
6. Step 6: Final answer
   x = 115,047.50