Finding the Fourth Proportional to 76,849.07, 106,051.50 and 42,857.59

Step by Step Solution

1. Step 1: Write the proportion equation
   76,849.07 : 106,051.50 = 42,857.59 : x
2. Step 2: Convert to fraction form
   76,849.07/106,051.50 = 42,857.59/x
3. Step 3: Cross multiply
   76,849.07x = 106,051.50 × 42,857.59
4. Step 4: Simplify right side
   76,849.07x = 4,545,111,705.89
5. Step 5: Solve for x
   x = 4,545,111,705.89/76,849.07
6. Step 6: Final answer
   x = 59,143.36