Finding the Fourth Proportional to 61,323.30, 91,790.55 and 43,827.30

Step by Step Solution

1. Step 1: Write the proportion equation
   61,323.30 : 91,790.55 = 43,827.30 : x
2. Step 2: Convert to fraction form
   61,323.30/91,790.55 = 43,827.30/x
3. Step 3: Cross multiply
   61,323.30x = 91,790.55 × 43,827.30
4. Step 4: Simplify right side
   61,323.30x = 4,022,931,972.02
5. Step 5: Solve for x
   x = 4,022,931,972.02/61,323.30
6. Step 6: Final answer
   x = 65,602.01