Finding the Fourth Proportional to 78,605.84, 108,478.32 and 42,796.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,605.84 : 108,478.32 = 42,796.46 : x
2. Step 2: Convert to fraction form
   78,605.84/108,478.32 = 42,796.46/x
3. Step 3: Cross multiply
   78,605.84x = 108,478.32 × 42,796.46
4. Step 4: Simplify right side
   78,605.84x = 4,642,488,082.75
5. Step 5: Solve for x
   x = 4,642,488,082.75/78,605.84
6. Step 6: Final answer
   x = 59,060.35