Finding the Fourth Proportional to 291,002.05, 436,568.74 and 88,616.25

Step by Step Solution

1. Step 1: Write the proportion equation
   291,002.05 : 436,568.74 = 88,616.25 : x
2. Step 2: Convert to fraction form
   291,002.05/436,568.74 = 88,616.25/x
3. Step 3: Cross multiply
   291,002.05x = 436,568.74 × 88,616.25
4. Step 4: Simplify right side
   291,002.05x = 38,687,084,606.03
5. Step 5: Solve for x
   x = 38,687,084,606.03/291,002.05
6. Step 6: Final answer
   x = 132,944.37