Finding the Fourth Proportional to 89,075.23, 133,627.56 and 42,312.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,075.23 : 133,627.56 = 42,312.31 : x
2. Step 2: Convert to fraction form
   89,075.23/133,627.56 = 42,312.31/x
3. Step 3: Cross multiply
   89,075.23x = 133,627.56 × 42,312.31
4. Step 4: Simplify right side
   89,075.23x = 5,654,090,743.26
5. Step 5: Solve for x
   x = 5,654,090,743.26/89,075.23
6. Step 6: Final answer
   x = 63,475.45