Finding the Fourth Proportional to 102,003.30, 153,026.55 and 30,920.10

Step by Step Solution

1. Step 1: Write the proportion equation
   102,003.30 : 153,026.55 = 30,920.10 : x
2. Step 2: Convert to fraction form
   102,003.30/153,026.55 = 30,920.10/x
3. Step 3: Cross multiply
   102,003.30x = 153,026.55 × 30,920.10
4. Step 4: Simplify right side
   102,003.30x = 4,731,596,228.66
5. Step 5: Solve for x
   x = 4,731,596,228.66/102,003.30
6. Step 6: Final answer
   x = 46,386.70