Finding the Fourth Proportional to 77,882.45, 107,477.71 and 42,072.45

Step by Step Solution

1. Step 1: Write the proportion equation
   77,882.45 : 107,477.71 = 42,072.45 : x
2. Step 2: Convert to fraction form
   77,882.45/107,477.71 = 42,072.45/x
3. Step 3: Cross multiply
   77,882.45x = 107,477.71 × 42,072.45
4. Step 4: Simplify right side
   77,882.45x = 4,521,850,580.09
5. Step 5: Solve for x
   x = 4,521,850,580.09/77,882.45
6. Step 6: Final answer
   x = 58,059.94