Finding the Fourth Proportional to 208,061.67, 312,018.69 and 74,906.17

Step by Step Solution

1. Step 1: Write the proportion equation
   208,061.67 : 312,018.69 = 74,906.17 : x
2. Step 2: Convert to fraction form
   208,061.67/312,018.69 = 74,906.17/x
3. Step 3: Cross multiply
   208,061.67x = 312,018.69 × 74,906.17
4. Step 4: Simplify right side
   208,061.67x = 23,372,125,036.32
5. Step 5: Solve for x
   x = 23,372,125,036.32/208,061.67
6. Step 6: Final answer
   x = 112,332.68