Finding the Fourth Proportional to 58,123.31, 80,189.52 and 37,991.80

Step by Step Solution

1. Step 1: Write the proportion equation
   58,123.31 : 80,189.52 = 37,991.80 : x
2. Step 2: Convert to fraction form
   58,123.31/80,189.52 = 37,991.80/x
3. Step 3: Cross multiply
   58,123.31x = 80,189.52 × 37,991.80
4. Step 4: Simplify right side
   58,123.31x = 3,046,543,804.99
5. Step 5: Solve for x
   x = 3,046,543,804.99/58,123.31
6. Step 6: Final answer
   x = 52,415.18