Finding the Fourth Proportional to 109,387.89, 164,016.16 and 42,748.58

Step by Step Solution

1. Step 1: Write the proportion equation
   109,387.89 : 164,016.16 = 42,748.58 : x
2. Step 2: Convert to fraction form
   109,387.89/164,016.16 = 42,748.58/x
3. Step 3: Cross multiply
   109,387.89x = 164,016.16 × 42,748.58
4. Step 4: Simplify right side
   109,387.89x = 7,011,458,240.22
5. Step 5: Solve for x
   x = 7,011,458,240.22/109,387.89
6. Step 6: Final answer
   x = 64,097.21