Finding the Fourth Proportional to 58,667.64, 80,961.30 and 31,811.04

Step by Step Solution

1. Step 1: Write the proportion equation
   58,667.64 : 80,961.30 = 31,811.04 : x
2. Step 2: Convert to fraction form
   58,667.64/80,961.30 = 31,811.04/x
3. Step 3: Cross multiply
   58,667.64x = 80,961.30 × 31,811.04
4. Step 4: Simplify right side
   58,667.64x = 2,575,463,152.75
5. Step 5: Solve for x
   x = 2,575,463,152.75/58,667.64
6. Step 6: Final answer
   x = 43,899.21