Finding the Fourth Proportional to 375,411.69, 563,112.75 and 91,104.57

Step by Step Solution

1. Step 1: Write the proportion equation
   375,411.69 : 563,112.75 = 91,104.57 : x
2. Step 2: Convert to fraction form
   375,411.69/563,112.75 = 91,104.57/x
3. Step 3: Cross multiply
   375,411.69x = 563,112.75 × 91,104.57
4. Step 4: Simplify right side
   375,411.69x = 51,302,144,950.27
5. Step 5: Solve for x
   x = 51,302,144,950.27/375,411.69
6. Step 6: Final answer
   x = 136,655.69