Finding the Fourth Proportional to 111,681.60, 154,118.82 and 61,379.52

Step by Step Solution

1. Step 1: Write the proportion equation
   111,681.60 : 154,118.82 = 61,379.52 : x
2. Step 2: Convert to fraction form
   111,681.60/154,118.82 = 61,379.52/x
3. Step 3: Cross multiply
   111,681.60x = 154,118.82 × 61,379.52
4. Step 4: Simplify right side
   111,681.60x = 9,459,739,194.57
5. Step 5: Solve for x
   x = 9,459,739,194.57/111,681.60
6. Step 6: Final answer
   x = 84,702.75