Finding the Fourth Proportional to 126,250.39, 189,411.15 and 42,018.10

Step by Step Solution

1. Step 1: Write the proportion equation
   126,250.39 : 189,411.15 = 42,018.10 : x
2. Step 2: Convert to fraction form
   126,250.39/189,411.15 = 42,018.10/x
3. Step 3: Cross multiply
   126,250.39x = 189,411.15 × 42,018.10
4. Step 4: Simplify right side
   126,250.39x = 7,958,696,641.82
5. Step 5: Solve for x
   x = 7,958,696,641.82/126,250.39
6. Step 6: Final answer
   x = 63,038.99