Finding the Fourth Proportional to 66,061.48, 91,240.54 and 43,501.32

Step by Step Solution

1. Step 1: Write the proportion equation
   66,061.48 : 91,240.54 = 43,501.32 : x
2. Step 2: Convert to fraction form
   66,061.48/91,240.54 = 43,501.32/x
3. Step 3: Cross multiply
   66,061.48x = 91,240.54 × 43,501.32
4. Step 4: Simplify right side
   66,061.48x = 3,969,083,927.51
5. Step 5: Solve for x
   x = 3,969,083,927.51/66,061.48
6. Step 6: Final answer
   x = 60,081.67