Finding the Fourth Proportional to 78,961.56, 108,963.72 and 43,152.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,961.56 : 108,963.72 = 43,152.78 : x
2. Step 2: Convert to fraction form
   78,961.56/108,963.72 = 43,152.78/x
3. Step 3: Cross multiply
   78,961.56x = 108,963.72 × 43,152.78
4. Step 4: Simplify right side
   78,961.56x = 4,702,087,437.14
5. Step 5: Solve for x
   x = 4,702,087,437.14/78,961.56
6. Step 6: Final answer
   x = 59,549.07