Finding the Fourth Proportional to 78,384.24, 108,171.05 and 42,574.95

Step by Step Solution

1. Step 1: Write the proportion equation
   78,384.24 : 108,171.05 = 42,574.95 : x
2. Step 2: Convert to fraction form
   78,384.24/108,171.05 = 42,574.95/x
3. Step 3: Cross multiply
   78,384.24x = 108,171.05 × 42,574.95
4. Step 4: Simplify right side
   78,384.24x = 4,605,376,832.32
5. Step 5: Solve for x
   x = 4,605,376,832.32/78,384.24
6. Step 6: Final answer
   x = 58,753.86