Finding the Fourth Proportional to 61,120.00, 91,661.36 and 42,265.87

Step by Step Solution

1. Step 1: Write the proportion equation
   61,120.00 : 91,661.36 = 42,265.87 : x
2. Step 2: Convert to fraction form
   61,120.00/91,661.36 = 42,265.87/x
3. Step 3: Cross multiply
   61,120.00x = 91,661.36 × 42,265.87
4. Step 4: Simplify right side
   61,120.00x = 3,874,146,685.30
5. Step 5: Solve for x
   x = 3,874,146,685.30/61,120.00
6. Step 6: Final answer
   x = 63,385.91