Finding the Fourth Proportional to 82,938.78, 113,539.82 and 82,345.86

Step by Step Solution

1. Step 1: Write the proportion equation
   82,938.78 : 113,539.82 = 82,345.86 : x
2. Step 2: Convert to fraction form
   82,938.78/113,539.82 = 82,345.86/x
3. Step 3: Cross multiply
   82,938.78x = 113,539.82 × 82,345.86
4. Step 4: Simplify right side
   82,938.78x = 9,349,533,710.42
5. Step 5: Solve for x
   x = 9,349,533,710.42/82,938.78
6. Step 6: Final answer
   x = 112,728.13