Finding the Fourth Proportional to 92,907.34, 128,265.32 and 61,168.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,907.34 : 128,265.32 = 61,168.50 : x
2. Step 2: Convert to fraction form
   92,907.34/128,265.32 = 61,168.50/x
3. Step 3: Cross multiply
   92,907.34x = 128,265.32 × 61,168.50
4. Step 4: Simplify right side
   92,907.34x = 7,845,797,379.34
5. Step 5: Solve for x
   x = 7,845,797,379.34/92,907.34
6. Step 6: Final answer
   x = 84,447.55