Finding the Fourth Proportional to 88,717.10, 133,075.65 and 42,061.10

Step by Step Solution

1. Step 1: Write the proportion equation
   88,717.10 : 133,075.65 = 42,061.10 : x
2. Step 2: Convert to fraction form
   88,717.10/133,075.65 = 42,061.10/x
3. Step 3: Cross multiply
   88,717.10x = 133,075.65 × 42,061.10
4. Step 4: Simplify right side
   88,717.10x = 5,597,308,222.22
5. Step 5: Solve for x
   x = 5,597,308,222.22/88,717.10
6. Step 6: Final answer
   x = 63,091.65