Finding the Fourth Proportional to 109,475.30, 164,256.15 and 42,904.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,475.30 : 164,256.15 = 42,904.10 : x
2. Step 2: Convert to fraction form
   109,475.30/164,256.15 = 42,904.10/x
3. Step 3: Cross multiply
   109,475.30x = 164,256.15 × 42,904.10
4. Step 4: Simplify right side
   109,475.30x = 7,047,262,285.22
5. Step 5: Solve for x
   x = 7,047,262,285.22/109,475.30
6. Step 6: Final answer
   x = 64,373.08