Finding the Fourth Proportional to 97,590.72, 134,667.72 and 54,570

Step by Step Solution

1. Step 1: Write the proportion equation
   97,590.72 : 134,667.72 = 54,570 : x
2. Step 2: Convert to fraction form
   97,590.72/134,667.72 = 54,570/x
3. Step 3: Cross multiply
   97,590.72x = 134,667.72 × 54,570
4. Step 4: Simplify right side
   97,590.72x = 7,348,817,480.40
5. Step 5: Solve for x
   x = 7,348,817,480.40/97,590.72
6. Step 6: Final answer
   x = 75,302.42