Finding the Fourth Proportional to 58,785, 81,123.90 and 31,928.03

Step by Step Solution

1. Step 1: Write the proportion equation
   58,785 : 81,123.90 = 31,928.03 : x
2. Step 2: Convert to fraction form
   58,785/81,123.90 = 31,928.03/x
3. Step 3: Cross multiply
   58,785x = 81,123.90 × 31,928.03
4. Step 4: Simplify right side
   58,785x = 2,590,126,312.92
5. Step 5: Solve for x
   x = 2,590,126,312.92/58,785
6. Step 6: Final answer
   x = 44,061.01