Finding the Fourth Proportional to 88,814.76, 133,156.62 and 42,013

Step by Step Solution

1. Step 1: Write the proportion equation
   88,814.76 : 133,156.62 = 42,013 : x
2. Step 2: Convert to fraction form
   88,814.76/133,156.62 = 42,013/x
3. Step 3: Cross multiply
   88,814.76x = 133,156.62 × 42,013
4. Step 4: Simplify right side
   88,814.76x = 5,594,309,076.06
5. Step 5: Solve for x
   x = 5,594,309,076.06/88,814.76
6. Step 6: Final answer
   x = 62,988.51