Finding the Fourth Proportional to 51,088.51, 70,473 and 30,665.14

Step by Step Solution

1. Step 1: Write the proportion equation
   51,088.51 : 70,473 = 30,665.14 : x
2. Step 2: Convert to fraction form
   51,088.51/70,473 = 30,665.14/x
3. Step 3: Cross multiply
   51,088.51x = 70,473 × 30,665.14
4. Step 4: Simplify right side
   51,088.51x = 2,161,064,411.22
5. Step 5: Solve for x
   x = 2,161,064,411.22/51,088.51
6. Step 6: Final answer
   x = 42,300.40