Finding the Fourth Proportional to 111,886.72, 167,726.40 and 55,692.16

Step by Step Solution

1. Step 1: Write the proportion equation
   111,886.72 : 167,726.40 = 55,692.16 : x
2. Step 2: Convert to fraction form
   111,886.72/167,726.40 = 55,692.16/x
3. Step 3: Cross multiply
   111,886.72x = 167,726.40 × 55,692.16
4. Step 4: Simplify right side
   111,886.72x = 9,341,045,505.02
5. Step 5: Solve for x
   x = 9,341,045,505.02/111,886.72
6. Step 6: Final answer
   x = 83,486.63