Finding the Fourth Proportional to 93,142.51, 139,713.81 and 30,813.01

Step by Step Solution

1. Step 1: Write the proportion equation
   93,142.51 : 139,713.81 = 30,813.01 : x
2. Step 2: Convert to fraction form
   93,142.51/139,713.81 = 30,813.01/x
3. Step 3: Cross multiply
   93,142.51x = 139,713.81 × 30,813.01
4. Step 4: Simplify right side
   93,142.51x = 4,305,003,024.67
5. Step 5: Solve for x
   x = 4,305,003,024.67/93,142.51
6. Step 6: Final answer
   x = 46,219.53