Finding the Fourth Proportional to 141,838.61, 212,789.05 and 42,006.61

Step by Step Solution

1. Step 1: Write the proportion equation
   141,838.61 : 212,789.05 = 42,006.61 : x
2. Step 2: Convert to fraction form
   141,838.61/212,789.05 = 42,006.61/x
3. Step 3: Cross multiply
   141,838.61x = 212,789.05 × 42,006.61
4. Step 4: Simplify right side
   141,838.61x = 8,938,546,796.59
5. Step 5: Solve for x
   x = 8,938,546,796.59/141,838.61
6. Step 6: Final answer
   x = 63,019.14