Finding the Fourth Proportional to 83,128.32, 114,716.88 and 45,402.48

Step by Step Solution

1. Step 1: Write the proportion equation
   83,128.32 : 114,716.88 = 45,402.48 : x
2. Step 2: Convert to fraction form
   83,128.32/114,716.88 = 45,402.48/x
3. Step 3: Cross multiply
   83,128.32x = 114,716.88 × 45,402.48
4. Step 4: Simplify right side
   83,128.32x = 5,208,430,849.86
5. Step 5: Solve for x
   x = 5,208,430,849.86/83,128.32
6. Step 6: Final answer
   x = 62,655.31