Finding the Fourth Proportional to 111,461.12, 153,810.24 and 61,156.16

Step by Step Solution

1. Step 1: Write the proportion equation
   111,461.12 : 153,810.24 = 61,156.16 : x
2. Step 2: Convert to fraction form
   111,461.12/153,810.24 = 61,156.16/x
3. Step 3: Cross multiply
   111,461.12x = 153,810.24 × 61,156.16
4. Step 4: Simplify right side
   111,461.12x = 9,406,443,647.08
5. Step 5: Solve for x
   x = 9,406,443,647.08/111,461.12
6. Step 6: Final answer
   x = 84,392.15