Finding the Fourth Proportional to 109,702.61, 164,429.51 and 50,415.77

Step by Step Solution

1. Step 1: Write the proportion equation
   109,702.61 : 164,429.51 = 50,415.77 : x
2. Step 2: Convert to fraction form
   109,702.61/164,429.51 = 50,415.77/x
3. Step 3: Cross multiply
   109,702.61x = 164,429.51 × 50,415.77
4. Step 4: Simplify right side
   109,702.61x = 8,289,839,283.15
5. Step 5: Solve for x
   x = 8,289,839,283.15/109,702.61
6. Step 6: Final answer
   x = 75,566.48