Finding the Fourth Proportional to 92,141.88, 138,068.82 and 64,116.69

Step by Step Solution

1. Step 1: Write the proportion equation
   92,141.88 : 138,068.82 = 64,116.69 : x
2. Step 2: Convert to fraction form
   92,141.88/138,068.82 = 64,116.69/x
3. Step 3: Cross multiply
   92,141.88x = 138,068.82 × 64,116.69
4. Step 4: Simplify right side
   92,141.88x = 8,852,515,730.61
5. Step 5: Solve for x
   x = 8,852,515,730.61/92,141.88
6. Step 6: Final answer
   x = 96,074.83