Finding the Fourth Proportional to 97,665.78, 146,259.74 and 88,199.48

Step by Step Solution

1. Step 1: Write the proportion equation
   97,665.78 : 146,259.74 = 88,199.48 : x
2. Step 2: Convert to fraction form
   97,665.78/146,259.74 = 88,199.48/x
3. Step 3: Cross multiply
   97,665.78x = 146,259.74 × 88,199.48
4. Step 4: Simplify right side
   97,665.78x = 12,900,033,012.94
5. Step 5: Solve for x
   x = 12,900,033,012.94/97,665.78
6. Step 6: Final answer
   x = 132,083.45