Finding the Fourth Proportional to 61,061.36, 91,456.71 and 46,917.28

Step by Step Solution

1. Step 1: Write the proportion equation
   61,061.36 : 91,456.71 = 46,917.28 : x
2. Step 2: Convert to fraction form
   61,061.36/91,456.71 = 46,917.28/x
3. Step 3: Cross multiply
   61,061.36x = 91,456.71 × 46,917.28
4. Step 4: Simplify right side
   61,061.36x = 4,290,900,070.95
5. Step 5: Solve for x
   x = 4,290,900,070.95/61,061.36
6. Step 6: Final answer
   x = 70,271.94