Finding the Fourth Proportional to 109,415.61, 164,141.64 and 34,518.15

Step by Step Solution

1. Step 1: Write the proportion equation
   109,415.61 : 164,141.64 = 34,518.15 : x
2. Step 2: Convert to fraction form
   109,415.61/164,141.64 = 34,518.15/x
3. Step 3: Cross multiply
   109,415.61x = 164,141.64 × 34,518.15
4. Step 4: Simplify right side
   109,415.61x = 5,665,865,750.77
5. Step 5: Solve for x
   x = 5,665,865,750.77/109,415.61
6. Step 6: Final answer
   x = 51,782.97