Finding the Fourth Proportional to 78,061.56, 107,724.88 and 42,251.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,061.56 : 107,724.88 = 42,251.46 : x
2. Step 2: Convert to fraction form
   78,061.56/107,724.88 = 42,251.46/x
3. Step 3: Cross multiply
   78,061.56x = 107,724.88 × 42,251.46
4. Step 4: Simplify right side
   78,061.56x = 4,551,533,458.32
5. Step 5: Solve for x
   x = 4,551,533,458.32/78,061.56
6. Step 6: Final answer
   x = 58,306.98