Finding the Fourth Proportional to 109,515.31, 164,342.06 and 42,953.66

Step by Step Solution

1. Step 1: Write the proportion equation
   109,515.31 : 164,342.06 = 42,953.66 : x
2. Step 2: Convert to fraction form
   109,515.31/164,342.06 = 42,953.66/x
3. Step 3: Cross multiply
   109,515.31x = 164,342.06 × 42,953.66
4. Step 4: Simplify right side
   109,515.31x = 7,059,092,968.94
5. Step 5: Solve for x
   x = 7,059,092,968.94/109,515.31
6. Step 6: Final answer
   x = 64,457.59