Finding the Fourth Proportional to 102,276.72, 141,141.52 and 56,955.28

Step by Step Solution

1. Step 1: Write the proportion equation
   102,276.72 : 141,141.52 = 56,955.28 : x
2. Step 2: Convert to fraction form
   102,276.72/141,141.52 = 56,955.28/x
3. Step 3: Cross multiply
   102,276.72x = 141,141.52 × 56,955.28
4. Step 4: Simplify right side
   102,276.72x = 8,038,754,791.23
5. Step 5: Solve for x
   x = 8,038,754,791.23/102,276.72
6. Step 6: Final answer
   x = 78,598.09