Finding the Fourth Proportional to 102,337.63, 141,224.72 and 57,015.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,337.63 : 141,224.72 = 57,015.50 : x
2. Step 2: Convert to fraction form
   102,337.63/141,224.72 = 57,015.50/x
3. Step 3: Cross multiply
   102,337.63x = 141,224.72 × 57,015.50
4. Step 4: Simplify right side
   102,337.63x = 8,051,997,031.96
5. Step 5: Solve for x
   x = 8,051,997,031.96/102,337.63
6. Step 6: Final answer
   x = 78,680.71