Finding the Fourth Proportional to 55,692.72, 76,848.86 and 31,820.94

Step by Step Solution

1. Step 1: Write the proportion equation
   55,692.72 : 76,848.86 = 31,820.94 : x
2. Step 2: Convert to fraction form
   55,692.72/76,848.86 = 31,820.94/x
3. Step 3: Cross multiply
   55,692.72x = 76,848.86 × 31,820.94
4. Step 4: Simplify right side
   55,692.72x = 2,445,402,804.02
5. Step 5: Solve for x
   x = 2,445,402,804.02/55,692.72
6. Step 6: Final answer
   x = 43,908.84