Finding the Fourth Proportional to 109,507.10, 164,139.15 and 42,925.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,507.10 : 164,139.15 = 42,925.10 : x
2. Step 2: Convert to fraction form
   109,507.10/164,139.15 = 42,925.10/x
3. Step 3: Cross multiply
   109,507.10x = 164,139.15 × 42,925.10
4. Step 4: Simplify right side
   109,507.10x = 7,045,689,427.67
5. Step 5: Solve for x
   x = 7,045,689,427.67/109,507.10
6. Step 6: Final answer
   x = 64,340.02