Finding the Fourth Proportional to 61,058.64, 91,430.24 and 42,141.67

Step by Step Solution

1. Step 1: Write the proportion equation
   61,058.64 : 91,430.24 = 42,141.67 : x
2. Step 2: Convert to fraction form
   61,058.64/91,430.24 = 42,141.67/x
3. Step 3: Cross multiply
   61,058.64x = 91,430.24 × 42,141.67
4. Step 4: Simplify right side
   61,058.64x = 3,853,023,002.10
5. Step 5: Solve for x
   x = 3,853,023,002.10/61,058.64
6. Step 6: Final answer
   x = 63,103.65