Finding the Fourth Proportional to 56,111.63, 77,435.67 and 30,962.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,111.63 : 77,435.67 = 30,962.75 : x
2. Step 2: Convert to fraction form
   56,111.63/77,435.67 = 30,962.75/x
3. Step 3: Cross multiply
   56,111.63x = 77,435.67 × 30,962.75
4. Step 4: Simplify right side
   56,111.63x = 2,397,620,904.11
5. Step 5: Solve for x
   x = 2,397,620,904.11/56,111.63
6. Step 6: Final answer
   x = 42,729.49