Finding the Fourth Proportional to 78,305.10, 108,061.84 and 42,495.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,305.10 : 108,061.84 = 42,495.42 : x
2. Step 2: Convert to fraction form
   78,305.10/108,061.84 = 42,495.42/x
3. Step 3: Cross multiply
   78,305.10x = 108,061.84 × 42,495.42
4. Step 4: Simplify right side
   78,305.10x = 4,592,133,276.77
5. Step 5: Solve for x
   x = 4,592,133,276.77/78,305.10
6. Step 6: Final answer
   x = 58,644.11